Outreach P3 Math - Outreach Edusys Pte Ltd

Primary 3 Mathematics
Ace The Exams with
My 24/7 Personal Tutor
Detailed Explanation of ALL Questions
by Tutor in Virtual Classroom
Consulting Editor: Dr Zhang Yong
© Outreach Edusys Pte Ltd
ALL RIGHTS RESERVED. No part of this book and the
accompanying CDROM may be reproduced or transmitted in
any form or by any means, electronic or mechanical,
including photocopying, CD duplication, replication, or by any
information storage and retrieval system, without
permission in writing from the Publisher.
First Published 2010
ISBN 978-981-4275-14-9
Published by:
Outreach Edusys Pte Ltd
(CRN: 200006571H)
Distributed by:
Outreach System Pte Ltd
20 Shaw Road, #07-03
Singapore 367956
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Fax: +65 31507345
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ii
Preface
This book is written to assist pupils in preparing for the Primary 3 Math
examinations. There are a total of 8 specially crafted examination style
papers. The main features of the papers are as follows.
1. Questions are modeled after examination papers set by top well known
Singapore schools.
2. Questions are crafted to highlight common misconceptions in each of
the topics.
This book comes with a multimedia CDROM. The CDROM contains detailed
explanation of each question in each paper by our teacher. These lessons
ensure pupils understand the methods behind solving each question.
Outreach Book Alive series brings the “tuition teacher” to you at zero
cost.
You may also want to try our online programme. These are interactive
“diagnostic” modules consisting of multiple choice questions. The
incorrect options to each question are carefully crafted using specific
mis-conception in learners. If your child submit a wrong answer, our
system will dynamically diagnose your child’s problem and bring him/her
an explanation on why he/she is wrong, and what is the correct way to
the solutions of such questions.
Visit http://www.orlesson.org today.
iii
Contents
Semestral Assessment 1 Mock Paper 1
1
Semestral Assessment 1 Mock Paper 2
17
Semestral Assessment 1 Mock Paper 3
30
Semestral Assessment 1 Mock Paper 4
43
Semestral Assessment 2 Mock Paper 1
59
Semestral Assessment 2 Mock Paper 2
73
Semestral Assessment 2 Mock Paper 3
87
Semestral Assessment 2 Mock Paper 4
102
Short Answers
115
Free Past Year School Exam Papers (from 2004 onwards) for download and
print.
Visit http://www.orlesson.org for links and download instructions.
Subscribe to Outreach Lesson Online Access for hundreds of hours of
lessons, and thousands of questions. Less than 70 cents a days for unlimited
access to ALL subjects. For details, visit http://www.orlesson.org.
iv
Semestral Assessment 1 Mock Paper 1
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. For each question, write the number corresponding to the correct
option in the bracket provided.
1.
2.
3.
In 5037, the value of the digit 5 is _________ .
(1)
5
(2) 50
(3)
500
(4) 5000
(
)
(
)
(
)
The product of 255 and 5 is _________ .
(1)
1055
(2) 1255
(3)
1275
(4) 2555
How many hundreds are there in 5783?
(1)
7
(2)
(3)
700
(4)
57
783
4.
Mary has $4.2 in 20-cent coins. How many 20-cent coins does she have?
(1)
20
(2) 21
(3)
42
(4) 84
(
)
5.
Four thousand, nine hundred and one written as a numeral is
_________ .
(1)
490
(2) 491
(3)
4901
(4) 4910
6.
(
)
(
)
What is the sum of 460 tens and 14 hundreds?
(1)
446
(2) 474
(3)
600
(4) 6000
1
7.
Which of the following numbers leaves no remainder when divided by 4?
(1)
2160
(2) 2534
(3)
3222
(4) 3618
(
)
8.
2097 is more than _________ by 20 tens.
(1)
1877
(2) 1897
(3)
2077
(4) 2297
9.
10.
)
(
)
Divide 64 by 4. The answer has the same value as
(1)
60 + 8
(2) 200 + 56
(3)
20 – 4
(4) 15 x 4
Add 3484 to 1699. In the answer, the digit in the hundred place is
_________ .
(1)
(3)
11.
(
1
5
(2)
(4)
4
7
(
)
(
)
Which of the following amount of money is the largest?
(1)
7 fifty-cent coins
(2) 32 ten-cent coins
(3)
3 one-dollar coins
(4) 18 twenty-cent coins
12.
What is the smallest 4-digit even number that can be formed by 0, 5, 6
and 9?
(1)
5069
(2) 5096
(3)
5690
(4) 5960
(
)
13.
Subtract 536 from the sum of 841 and 627.
(1)
2004
(2) 1468
(3)
932
(4) 750
(
2
)
14.
What is the missing number in the number pattern?
64, _________, 16, 8, 4, 2
(1)
18
(2) 24
(3)
32
(4) 128
(
15.
In the number 2537, the value of the digit _________ is smallest.
(1)
2
(2) 3
(3)
5
(4) 7
(
)
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided. For questions which require units, give your answers in the units
stated.
16.
17.
If three metal balls have the same mass as 12 wooden balls, then 12
metal balls have the same mass as _________ wooden balls.
Ans: _____________________
Write five thousand, nine hundred and eighteen in figures.
3
8.
The sum of two numbers is 5000. The smaller number is 2374. What is
the bigger number?
Ans: _____________________
19.
6629
= 6000 +
+ 9 + 20
What is the missing number in the box?
Ans: _____________________
20.
How many eights are there in 256?
Ans: ________________eights
4
21.
Mike has 3592 stamps. He has 836 stamps less than Henry. How many
stamps do they have together?
Ans: _____________________
22.
237 + 481 = ___________ ÷ 7
23.
Ans: _____________________
What number when divided by 4 has quotient of 23 and a remainder of
3?
Ans: _____________________
5
24.
What is the greatest 4-digit number that can be formed using the digits
9, 0, 3, 4?
25.
Ans: _____________________
What is the missing number in the following pattern?
385, 885, 1885, _________, 5385
26.
Ans: _____________________
The sum of two numbers is 1630. If one number is 36 more than the
other number, what is the other number?
Ans: _____________________
6
27.
Study the marking line below. The marking are equally spaced out, what
is the number of Y?
4327
Y
4497
Ans: _____________________
28.
4 similar dolls and a toy car cost $220. If the toy car costs $60, what is
the cost of each doll?
Ans: _____________________
7
29.
Jane made a note book with 30 pages and she numbered the pages from 1
to 30. How many times did she use the digit “3”?
Ans: _____________________
30.
Daniel has 7 two-dollar notes and 6 twenty-cent coins. He spent $9.00.
How much did he left?
Ans: _____________________
8
31.
Jia Lin wanted to buy a pair of shoes. The shoes cost 4 times as much as
the slipper. The slipper cost $13. How much did the shoes and the slipper
cost altogether?
Ans: _____________________
32.
Jessica had $805 after selling 9 books at $57 each. How much money
did she have before selling 9 books?
Ans: _____________________
9
33.
Tom has $3.60 in his pocket. He has the same number of fifty-cent coins
and ten-cent coins. How many ten-cent coins does he have?
Ans: _____________________
34.
Kate’s cat was missing. She got into a lift to look for her cat in her block.
She went down 3 floors, then up 9 floors, and went 4 floors down again.
She finally found her cat on the 6th floor. On which floor did she get into
the lift?
Ans: _____________________
10
35.
I am a 4-digit number. The value of the digit in the thousands place is
7000. My hundreds digit is 9 less than my tens digit. My tens and one
digits are the same. My ones digit is 9.
What number am I?
Ans: _____________________
Questions 36 to 45 carry 2 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided. (40
marks)
36.
Mrs. Linda had 69 cookies. If she were to give 4 cookies for each pupil in
her class, she would need 35 cookies more. How many pupils were there
in her class?
Ans: _____________________
11
37.
Cheryl has 147 stamps. Her sister has 5 times as many stamps as Cheryl.
How many stamps do they have altogether?
Ans: _____________________
38.
Kelvin is 9 years old. In 2 years’ time, Kelvin’s brother will be 2 times as
old as Kelvin. How old is his brother now?
Ans: _____________________
12
39.
James had $500. He bought a jacket for $120 and four T-shirts for
$160. How much does James have left?
Ans: _____________________
40.
There are 12 boys and 13 girls in a class. Each boy received 8 stickers
and each girl received 6 stickers. How many stickers did they receive
together?
Ans: _____________________
13
41.
From January to March, Mr. Lee sold 4200 books. In January, he sold
1600 books. In February, he sold 80 books less than he did in January.
How many books did he sell in March?
Ans: _____________________
42.
Annie has 440 stickers. She has 158 more stickers than Zhi Ping. Zhi
Ping has 3 times as many stickers as Lim. How many stickers do they
have together?
Ans: _____________________
14
43.
44.
Ms. Tan has 100 hundreds of mangoes in three boxes: box A, box B, box
C. Box A and box B contain 67 mangoes. The number of mangoes in box B
and box C is 68. How many mangoes are there in box B?
Ans: _____________________
A dress cost $28. The dress cost 2 times as much as a skirt. How many
skirts could be bought with $84?
Ans: _____________________
15
45.
Harry bought 6 bags of oranges. There were 21 oranges in each plastic
bag. She repacked all of the oranges into 9 boxes. How many oranges
were there in each box?
Ans: _____________________
16
Semestral Assessment 1 Mock Paper 2
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. For each question, write the number corresponding to the correct
option in the bracket provided.
1.
2.
3.
4.
5.
6.
What is the place value of digit “0” in 3850?
(1)
Ones
(2) Tens
(3)
Hundreds
(4) Thousands
(
)
(
)
(
)
(
)
(
)
What is the sum of the value of the digit “4” in 4037 and 3420?
(1)
4400
(2) 4457
(3)
7400
(4) 7457
(
)
4 x 8 = _______ + 8.
(1)
4
(3)
32
(2)
(4)
How many hundreds are there in 4728?
(1)
7
(2)
(3)
700
(4)
What is the product of 476 and 4?
(1)
1504
(2)
(3)
1904
(4)
Which of the following is equal to 7224?
(1)
7+2+2+4
(2)
(3)
7000 + 22 + 4
(4)
17
24
40
47
728
1684
3224
7200 + 2 + 4
7000 + 220 + 4
7.
8.
9.
I am an odd number that comes before 6053 and after 6047. What
number am I?
(1)
6041
(2) 6045
(3)
6051
(4) 6055
(
4 thousands + 5 hundreds + 5 ones = _________ .
(1)
455
(2) 4055
(3)
4505
(4) 4550
11.
(
Which of the following is NOT correct?
(1)
(3)
10.
)
8 x 0 = 0
6 ÷ 1 = 6
(2)
(4)
Divide 745 by 8. What is the remainder?
(1)
1
(2)
(3)
3
(4)
)
5 x 9 = 9 x 5
4 x 6 = 4 + 4 + 4 + 4
(
)
2
5
(
)
(
)
Find the sum of $4.35, $13.80 and $11.
(1)
(3)
$18.26
$29.15
(2)
(4)
$28.15
$39.15
12.
In the number 3168, the value of the digit _________ is the smallest.
(1)
1
(2) 3
(3)
6
(4) 8
(
)
13.
Subtract 589 from the sum of 1467 and 845. What is the answer?
(1)
1434
(2) 1723
(3)
2312
(4) 2901
(
18
)
14.
15.
Which of the following fraction is largest?
2
1
(2)
(1)
5
5
4
3
(3)
(4)
5
5
(
)
Jenny will be 23 on her birthday in 2011. How old she was on her
birthday in 2007?
(1)
21
(2) 20
(3)
19
(4) 18
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided. For questions which require units, give your answers in the units
stated. (40 marks)
16.
Write six thousand, three hundred and fourteen in figures.
Ans: _____________________
17.
Find the value of 9000 – 5075.
Ans: _____________________
19
18.
Complete the number pattern: 3820, 3815, 3805, _________ , 3770.
Ans: _____________________
19.
_________ is 2476 more than 3657.
20.
Ans: _____________________
A dress costs $12 more than a skirt. If 2 skirts cost $38, what is the
cost of a dress?
Ans: _____________________
20
21.
22.
23.
Twelve people shared 51 cards. If each person receives the same number
of cards, how many cards were left over?
Ans: _____________________
4 pencils cost $2.8. How much do 12 pencils cost?
Ans: _____________________
Lily has $1458. Her brother has $569 less than her. How much money do
they have together?
Ans: _____________________
21
24.
÷ 6 = 13 remainder 5.
What is the missing number in the box?
25.
Ans: _____________________
The smallest 4 digit number that can be formed with the digit 0, 3, 5, 7
is _________ .
26.
Ans: _____________________
Emily collected 2547 stamps. Her sister collected 756 stamps more than
her. How many did they have together?
Ans: _____________________
22
27.
How many fifty-cent coins and 8 twenty-cent coins make $8.1?
28.
Ans: _________fifty-cent coins
Using all the digits 4, 7, 9, what is the difference between the greatest
3-digit number and the smallest 3-digit number?
29.
Ans: _____________________
How many fifty-cent coins can be exchanged for a ten-dollar note?
Ans: ________ fifty-cent coins
23
30.
There are 310 pages in a story books. Marry reads 9 pages everyday. In
how many days will she finish reading the book?
31.
Ans: _____________________
Find the sum of 5 thousands, 11 tens and 63 ones.
32.
Ans: _____________________
How many sixs are there in 578 + 748?
Ans: _____________________
24
33.
Study the pattern carefully. What is the number missing?
7
14
11
18
?
22
34.
Ans: _____________________
Lim is 9 years old. Chris is as twice years old as Lim. Ryan is six years
older than Chris. How old is Ryan?
35.
Ans: _____________________
The difference between two numbers is 134. The smaller number is 386.
What is the remainder when the bigger number is divided by 9?
Ans: _____________________
25
Questions 36 to 45 carry 2 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided. (40
marks)
36.
37.
Mr. Tan wants to buy a set of printer and scanner. The printer costs
$369 and the scanner costs $177 more. How much does he have to pay in
total?
Ans: _____________________
Alan spent $84 on the candies at a store. In the store, candies were sold
at 12 in a box for $14. How many candies did he buy?
Ans: _____________________
26
38.
39.
40.
Kathy has 1749 stickers. Annie has 458 stickers less than Kathy and 250
stickers more than Tom. How many stickers do they have together?
Ans: _____________________
Ben earns $2200 a month. He spends $1500 every month and saves the
rest. How much will he save in a year?
Ans: _____________________
Mary has 927 stamps. James has three times as much as Mary. If they
are to share they stamps equally, how many stamps will each of them
have?
Ans: _____________________
27
41.
42.
43.
There were 12 mangos, 14 bananas and 15 apples in a basket. How many
fruits were there in 4 such baskets?
Ans: _____________________
There were 359 women at a concert. There were 164 more men at the
concert than women. How many people were there at the concert?
Ans: _____________________
Jimmy has 4 times as many marbles as Kim. Kim has twice as many
marbles as Tom. If Tom has 16 marbles, how many marbles do they have
in total?
Ans: _____________________
28
44.
45.
Mrs. Tan bought 4 boxes of cookies. There were 24 cookies in each box.
She gave the cookies equally to 16 pupils in her class. How many cookies
did each pupil get?
Ans: _____________________
Katie saved the same amount of money from January to May. In June,
she saved $2270. She then had a total of $9520. How much did Katie
save in April?
Ans: _____________________
29
Semestral Assessment 1 Mock Paper 3
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each For each question, write the number corresponding to the correct
option in the bracket provided.
1.
2.
3.
4.
5.
6.
In 4705, what does the digit 5 stand for?
(1)
5 ones
(2) 5 tens
(3)
5 hundreds
(4) 5 thousands
(
)
(
)
What is the quotient when 854 is divided by 5?
(1)
4
(2) 17
(3)
170
(4) 174
In which of the following does the digit “7” has the greatest value?
(1)
9736
(2) 7984
(3)
4072
(4) 2157
(
Multiply 186 by 3. What is the product?
(1)
62
(2)
(3)
548
(4)
How many cents are there in $46.50?
(1)
50
(2)
(3)
4605
(4)
348
558
(
)
(
)
(
)
465
4650
Subtract 865 from 3000. The answer is _______.
(1)
2035
(2) 2135
(3)
2245
(4) 3245
30
)
7.
Add 3478 to 1654. The digit in the hundred place is _______.
(1)
(3)
5
3
(2)
(4)
1
2
(
8.
Mr. Tay saves $560 each month. How much money will he save in 8
months?
(1)
(3)
9.
10.
11.
)
$4080
$4480
(2)
(4)
358 + 379 is _______ more than 450.
(1)
177
(2)
(3)
277
(4)
$4088
$7280
)
(
)
(
)
(
)
187
287
How many twenty-cent coins have a total value of eight dollars?
(1)
30
(2) 35
(3)
40
(4) 50
30 tens multiplied by 30 ones is equal to
(1)
9000
(2)
(3)
600
(4)
(
900
330
12.
What would you get if you add all the even number between 20 and 30?
(1)
50
(2) 100
(3)
150
(4) 225
(
)
13.
Which of the following has the greatest value?
(1)
(3)
150 one-cent coins
32 five-cent coins
(2)
(4)
17 ten-cent coins
9 twenty-cent coins
(
31
)
14.
(1)
(3)
15.
+ 627 + 810 = 3000 – 544.
1019
(2)
2456
(4)
1437
3893
(
)
What is the greatest 4-digit even number that can be formed with 1, 5,
4, 8?
(1)
1458
(2) 4158
(3)
8514
(4) 8541
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided. For questions which require units, give your answers in the units
stated. (40 marks)
16.
Find the value of 508 x 7.
17.
Ans: _____________________
Write the numeral for seven thousand and twenty-five.
Ans: _____________________
32
18.
19.
20.
A bag contained 3900 beads. Anna gave 1250 of them to her brother and
gave 1890 to her sister. How many beads did she have left?
Ans: _____________________
The difference between two numbers is 784. If the bigger number is
4000, what is the smaller number?
Ans: _____________________
There were 34 more workers working in day shift than in night shift in a
factory. 7 workers were transferred from day shift to night shift. How
many more workers are there in day shift than night shift now?
Ans: _____________________
33
21.
22.
23.
James bought 6 tables. Each table cost $124. How much did he pay
altogether?
Ans: _____________________
The mass of a bag of rice is 7kg. What is the mass of 17 such bags of
rice?
Ans: _____________________
208 children are divided into 8 equal groups. If there are 88 boys
altogether, how many girls are there in each group if the number of girls
in each group is the same?
Ans: _____________________
34
24.
25.
26.
Look at the number pattern below. What is the missing number in the
box?
2471, 2474,
, 2480, 2483.
Ans: _____________________
A fruit-seller had 240 apples. He packed them into bags of 6 and sold
them at $3 per bag. How much money did he collect from selling all
apples?
5 x 8 = 8 + 8 +
+ 8
Ans: _____________________
What is the number in the box?
Ans: _____________________
35
27.
28.
The sum of two numbers is 863. The difference between two numbers is
157. What is the larger number?
Ans: _____________________
Mr. Tan earns $1150 more than Mrs. Tan. If Mrs. Tan earns $2480, how
much do they earn together?
Ans: _____________________
29.
How many fives are there in 785?
Ans: _____________________
36
30.
There were 1268 chicken pies and 5639 fruit pies in a shop. 4207 pies
were sold. How many pies were left unsold?
31.
Ans: _____________________
Kate put 40 books into 2 boxes. She put four times as many as books in
box A than box B. How many books did she put into box A?
32.
Ans: _____________________
There are 370 pupils in a camp. There are 86 more boys than girls in the
camp. How many boys are there?
Ans: _____________________
37
33.
34.
What fraction must be added to
3
to make 1 whole?
8
Ans: _____________________
11 x 46 = 8 x 46 + 46 x
What is the number in the box?
35.
Ans: _____________________
When I divide the greatest 2-digit odd number by 3, what is my answer?
Ans: _____________________
38
Questions 36 to 45 carry 2 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided. (40
marks)
36.
37.
Cathy had 283 red marbles, 435 blue marbles, and 587 green marbles.
She mixed the marbles together and put them equally into 9 boxes. How
many marbles did she put into each box?
Ans: _____________________
Ali has 1346 stickers. He throws away 458 stickers which are spoilt. He
gives the rest of the stickers to his 7 friends equally. How many stickers
does he have left?
Ans: _____________________
39
38.
39.
40.
6 classes of pupils went to the movie. There were 28 pupils in each class.
Each pupil paid $4 for the entrance fee. How much did they pay for the
entrance fee altogether?
Ans: _____________________
Mary arranged 129 photographs in an album. Each page of the album can
hold 9 photographs. She filled one page completely before going on to
the next page. How many pages did she use?
Ans: _____________________
A dress costs $44. The dress costs as four times as much as a T-shirt.
How many T-shirts can be bought with $132?
Ans: _____________________
40
41.
42.
43.
Ting Feng has $25. Jia Lin has $38. They want to buy a present which
cost $80 for their father. How much more money do they have to save
to buy the present?
Ans: _____________________
Ben and Kelvin had 348 stickers together. After Ben gave 58 stickers to
Kelvin, Ben has twice cards as many as Kelvin. How many cards did Ben
have at first?
Ans: _____________________
There are 145 children in a concert. There are 4 times as many adults as
children . How many people are there in the concert?
Ans: _____________________
41
44.
45.
Kathy, Steven and Daniel earned a total of $8700. Kathy earned $2880
and Steven earned $490 more than her. How much money did Daniel
earn?
Ans: _____________________
Ms. Tan packed 352 apples into bags of 8. She kept five bags for herself
and sold the rest of the bags at $5 each. How much money did she
receive?
Ans: _____________________
42
Semestral Assessment 1 Mock Paper 4
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. For each question, write the number corresponding to the correct
option in the bracket provided.
1.
Six thousand, eight hundred and five written as numeral is __________.
(1)
680
(2) 685
(3)
6805
(4) 6850
(
)
2.
What is the sum of 4 hundreds, 7 thousands and 6 ones?
(1)
4706
(2) 4760
(3)
7046
(4) 7406
3.
4.
5.
6.
(
)
(
)
(
)
(
)
In the number 9537, the value of the digit 9 is ___________ .
(1)
9000
(2) 900
(3)
90
(4) 9
Which of the following statement is incorrect?
(1)
4 fives = 5 + 5 + 5 + 5
(2) 70 = 7 tens
(3)
200 x 20 = 4000
(4) 3000 = 30 tens
Find the difference between 4300 and 1290.
(1)
2910
(2) 3010
(3)
3110
(4) 5590
What number when divided by 6 has quotient of 5 and a remainder of 4?
(1)
20
(2) 29
(3)
31
(4) 34
(
)
43
7.
8.
9.
10.
Which of the following is equal to 8053?
(1)
Eight hundred and fifty
(2)
three
(3)
80 hundreds and 53 ones
(4)
8000 + 500 + 3
805 + 3
(
)
(
)
(
)
Divide 684 by 6. The answer is __________ .
(1)
114
(2) 678
(3)
690
(4) 4104
How many tens are there in 3680?
(1)
8
(3)
368
8 x 16 =
in the boxes?
(1)
128
(3)
8
x 8 +
(2)
(4)
68
3680
x 8 . What is the missing number
(2)
(4)
32
4
(
11.
12.
Subtract 4 hundreds from 6 thousands. The answer is ________.
(1)
2
(2) 20
(3)
2000
(4) 5600
(
)
Which of the following is equal to 7004 – 4599?
(1)
200 + 40 + 5
(2) 200 + 50 + 4
(3)
2000 + 400 + 5
(4) 2000 + 500 + 4
(
13.
)
Complete the following pattern: 6430, 6230, 6030, ___________,
__________.
(1)
6030, 5830
(2) 5830, 5630
(3)
5430, 5230
(4) 5030, 4830
(
44
)
)
14.
A duck has 2 legs and a cat has 4 legs. How many legs do 8 ducks and 6
cats have?
(1)
16
(2) 24
(3)
28
(4) 40
(
)
15.
Tom put 96 mangoes equally into 8 bags. How many mangoes are there in
3 bags?
(1)
36
(2) 32
(3)
12
(4) 8
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided. For questions which require units, give your answers in the units
stated.
16.
7000 + 5 + 300 + 40 =
What is the missing number in the box?
Ans: _____________________
17.
What is the whole number between 7859 and 7861?
Ans: _____________________
45
18.
Write 6 thousands, 27 hundreds and 39 tens in numeral.
Ans: _____________________
19.
Ken gave $100 to a cashier when he bought a book that cost him $56.90.
How much change did he get back?
Ans: _____________________
20.
The product of two numbers is 234. If one number is 6, the other
number is _______.
Ans: _____________________
46
21.
Carol had 58 pearls. Thomas had three times as many pearls as Carol.
How many pearls had they altogether?
Ans: _____________________
22.
Find the value of 1064 ÷ 8.
Ans: _____________________
23.
Write in dollars and cents: 2485 cents = _____________.
Ans: _____________________
47
24.
Apples trees were planted on Mindy Road. Each tree was planted 7m
apart. What was the distance between the first tree and the eighth
tree?
Ans: _____________________
25.
Kelvin, Henry and Bill made donations to charity. Kelvin donated $18.70.
Henry donated $4.50 more than Kelvin. Bill donated $2.90 less than
Henry. How much did Bill donate?
Ans: _____________________
48
26.
Write the smallest 4-digit even number using all the digits below.
5, 0, 4, 9
Ans: _____________________
27.
Divide 3 hundreds and 7 ones by 8. The remainder is ___________ .
Ans: _____________________
49
28.
Jerry collected 1840 stamps. He collected 670 more stamps than Dave.
How many stamps did they collect together?
Ans: _____________________
29.
The mass of a box and five identical balls is 16kg. The mass of the box is
three times the mass of a ball. What is the mass of each ball?
Ans: _____________________
50
30.
Subtract a number from the sum of 349 and 862, and the result is 179.
Find the number.
Ans: _____________________
31.
Cheryl is 3 years younger than her brother. Her mother is 28 years older
than her brother. If Cheryl is 10 years old now, how old is her mother?
Ans: _____________________
51
32.
Kim has 7 times as many ice cream sticks as Ben. They have 128 ice
cream sticks together. How many ice cream sticks does Kim have?
Ans: _____________________
33.
Mrs. Tan packed 147 apples into boxes of 7. He sold 15 boxes. How many
boxes were not sold?
Ans: _____________________
52
34.
I am a 2-digit number. I am more than 20 but less than 30. Count in
fours and you will find me! Divide my ones digit by 4 and you will find my
ten digits. What number am I?
Ans: _____________________
35.
Mrs. Lee wants to pack 459 fish balls into bags. Each bag can contain 8
fish balls. How many bags will she need to pack all the fish balls?
Ans: _____________________
53
Questions 36 to 45 carry 4 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided.
36.
A table costs $264. A chair costs $129 less than it. What is the total
cost of the table and the chair?
Ans: _____________________
37.
Lana has 320 paper clips. She has 8 times as many paper clips as Emily.
Jason has 70 paper clips less than Lana. How many paper clips do they
have together?
Ans: _____________________
54
38.
Mr. Ho took his wife and 2 children to the zoo last Saturday. The tickets
cost $50 in total. An adult’s ticket costs $7 more than a child’s ticket.
How much does a child’s ticket cost?
Ans: _____________________
39.
A shopkeeper packed 624 chocolates into boxes. Each box contains 6
chocolates. If he sold each box at $8. How much money did he earn
altogether?
Ans: _____________________
55
40.
Chelvi has 4368 beads. There are 2469 blue beads and the rest are red
beads. How many more blue beads than red beads are there?
Ans: _____________________
41.
Andrea puts 1 ten-cent coin in her piggy bank as her savings on Monday.
She puts 3 ten-cent coins as her saving on the next day. Each day she
puts in 2 ten-cent coins more than the previous day. How much will she
save for the whole week?
Ans: _____________________
56
42.
Zhiwei went shopping with 3 hundred-dollar notes. He bought a pair of
shoes at $109. Then he wanted to buy a hand phone but found that he
was short of $49. What was the cost of the hand phone?
Ans: _____________________
43.
Mr. Tay made 5703 cookies. She sold 2837 cookies in the morning and
1860 cookies in the afternoon. How many cookies were left at the end of
the day?
Ans: _____________________
57
44.
Kathy bought a pair of earrings that cost $59.50 and a necklace that
cost $110.50. He paid the cashier the exact amount with two fifty-dollar
notes and some ten-dollar notes. How many ten-dollar notes did he use?
Ans: _____________________
45.
James, Jessica, and Alan have $890 together. James has $70 less than
Jessica. Jessica has twice times as many as Alan. How much money does
James have?
Ans: _____________________
58
Semestral Assessment 2 Mock Paper 1
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. Write the number of the correct option in the bracket provided.
1.
2.
3.
In 7085, the digit 8 has the same value as ___________.
(1)
8 x 1
(2) 8 x 10
(3)
8 x 100
(4) 8 x 1000
The number that is 200 less than 8047 is _____________ .
(1)
6047
(2) 7847
(3)
8027
(4) 8247
Which of the following fractions is smaller than
(1)
(3)
4.
5.
6.
2
3
4
9
(2)
(4)
3
5
7
12
(
)
(
)
(
)
(
)
(
)
(
)
?
The product of 34 tens and 5 is ___________.
(1)
17
(2) 170
(3)
1500
(4) 1700
Find the quotient when 860 divide by 8.
(1)
17
(2)
(3)
107
(4)
18
108
Express 6 kg 40g into grams
(1)
640
(3)
6040
6004
6400
(2)
(4)
59
7.
312 ÷ 4 =
(1)
13
(3)
208
x 6
(2)
(4)
78
1256
(
)
8.
The sum of two numbers is 2700. The first number is 1769. What is the
difference between the two numbers?
(1)
838
(2) 931
(3)
1769
(4) 4419
(
)
9.
The sum of 3854 and 3146 is the same as ___________ ones.
(1)
7
(2) 70
(3)
700
(4) 7000
10.
11.
12.
What is the sum of $24.70 and $36.55?
(1)
$61.25
(2)
(3)
$50.25
(4)
$60.25
$11.85
(
)
(
)
A piece of cloth is 8 m long. James cuts off 4m 90 cm of it. How much
cloth is left?
(1)
31 cm
(2) 310 cm
(3)
410 cm
(4) 490 cm
(
The total mass of 2 girls is about __________ .
(1)
50 g
(2) 5 kg
(3)
5 kg 470 g
(4) 55000 g
(
13.
)
)
The time now is 11.30 a.m., what time will be 45 minutes from now?
(1)
(3)
10.45 a.m.
12.00 p.m.
(2)
(4)
60
12.15 a.m.
12.15 p.m.
(
)
14.
The capacity of a container is 540 ml. 9 spoonfuls of water will fill it to
its halfway mark. What is the capacity of the spoon?
(1)
30 ml
(2) 60 ml
(3)
270 ml
(4) 540 ml
(
)
15.
Anna bakes 6 cakes in 2 hours. How much time does she need to bake 8
cakes?
(1)
120 minutes
(2) 160 minutes
(3)
240 minutes
(4) 480 minutes
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided.
16.
8 + 700 +
= 3520
What is the missing number in the box?
Ans: _____________________
17.
Express 6 kg 70 g in grams.
Ans: _____________________
61
18.
When 829 is divided by 8, the remainder is the same as 3 +
What does
19.
.
represent?
Ans: _____________________
A book and a pen cost $30. The book and five such pens cost $46. What
is the cost of the pen?
Ans: _____________________
20.
50 cm
23cm
What is the perimeter of the above figure?
Ans: _____________________
62
21.
What is the total value of 3 fifty-dollar notes and 5 five-dollar notes?
22.
Ans: _____________________
When a number is divided by 6, its quotient is 438 and its remainder is 5.
What is the number?
23.
Ans: _____________________
4 h 45 min = __________ min
Ans: _____________________
63
24.
Find the sum of
25.
Ans: _____________________
Kim is 162 cm tall. Mohan is 24 cm taller than Kim. Jane is 37 cm shorter
than Mohan. How tall is Jane?
26.
Ans: ___________________ m
Jerry has 7 one-dollar coins, 5 fifty-cent coins, 9 twenty-cent coins and
3 five-cent coins in his purse. How much money does Jerry has?
1
1
and
. Leave your answer in the simplest form.
4
12
Ans: _____________________
64
27.
1 4
B
= =
4 A 24
Study the relationships between factions given. What are the value of A
and B?
+
Ans: _____________________
200 x _________.
28.
200 x 7 = 200 x 4
29.
Ans: _____________________
Form the smallest 4-digit number that can divide 5 and leaves no
remainder with the digits 7, 0, 5, 1.
Ans: _____________________
65
30.
31.
32.
Jenny is 11 years old and her sister is 3 years younger than her. What is
their total age in 4 years’ time?
Ans: _____________________
How many right angles can you find in the figure below?
Ans: _____________________
The length of a string is 47 cm. What is the total length of 9 strings
place end to end? (Give your answer in metres and centimetres)
Ans: ________m_________cm
66
33.
34.
1
1
of the cake and Lau ate
3
3
of what was left. Cathy ate the remaining 4 slides. How many slides of
cake were there at first?
Alvin, Lau and Cathy shared a cake. Alvin ate
Ans: _____________________
A famer has a total of 20 chickens and pigs in the farm. The total
number of legs of these animals is 56. How many chickens and how many
pigs are there?
Ans: _____________________
67
35.
Michael bought 4 T-shirts and he has $9 left. If he were to buy 5 Tshirts, he would be short of $8. What is the cost of a T-shirt?
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided.
36.
Jessica started practicing on the violin at 11.30 a.m. and stopped at
1.15pm. Stephanie practiced on the violin from 1.30pm to 3.00 p.m. Who
practiced on the violin for longer time?
Ans: _____________________
68
37.
38.
John, Ken and Tom saved $1120 together. John saved three times as
much money as Ken and Tom saved four times as much money as Ken. How
much money did John save?
Ans: _____________________
Mr. Lim has a rectangular plot of land measuring by 40 m by 24 m. He
decided to use half of its area to build a house. What is the area of the
land used?
Ans: _____________________
69
39.
40.
Mrs. Tan bought 6 boxes of paper clips. Each box contained 168 paper
clips. She gave the paper clips equally to 9 pupils. How many paper clips
did each pupil get?
Ans: _____________________
The mass of a metal ball is 2850 g. It is 970 g heavier than a wooden
ball. What is the mass of the wooden ball?
Ans: _____________________
70
41.
42.
43.
Jenifer collected 5620 stamps. She gave 880 to Mary and gave 1370
more to Joy than to Mary. How many stamps had Jenifer left?
Ans: _____________________
The ribbon A is 8 m long. It is cut into two pieces. The first piece is
longer than the second piece by 40 cm. What is the length of the first
piece?
Ans: _____________________
In a funfair, Katie and Benny had the same amount of rice. After Katie
sold 36 kg of rice, Benny had 4 times as much rice as Katie had left.
What was the mass of rice Katie had at first?
Ans: _____________________
71
44.
Sam bought a dress for $34.50 and 4 similar skirts. She gave the
cashier $100 and received $17.50 change. What was the cost of the
skirt?
Ans: _____________________
45.
Lim and Ben have 1340 marbles altogether. If Ben and Annie have 1210
marbles altogether and Annie has 300 more marbles than Ben, how many
marbles do Lim have?
Ans: _____________________
72
Semestral Assessment 2 Mock Paper 2
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. Write the number of the correct option in the bracket provided.
1.
2.
3.
4.
5.
6.
In the numeral 5690, the digit “9” is in the __________ place.
(1)
ones
(2) tens
(3)
hundreds
(4) thousands
(
)
It took John 2 h 35 min to finish all home works. This is same as
__________ .
(1)
95 min
(2) 155 min
(3)
200 min
(4) 235 min
(
)
The sum of 3687 and 2463 is __________.
(1)
5040
(2) 5050
(3)
6050
(4) 6150
(
)
(
)
(
)
How many 5-cent coins give a value of $1.55?
(1)
155
(2) 55
(3)
31
(4) 30
5 kg 48 g is the same as __________.
(1)
548 g
(2)
(3)
5408 g
(4)
5048 g
5480 g
When 3849 is subtracted from a number, the answer is 1567. What is
the number?
(1)
2282
(2) 2382
(3)
4306
(4) 5416
(
73
)
7.
8.
9.
10.
Which of the following number leaves no remainder when divide by 6?
(1)
276
(2) 495
(3)
647
(4) 844
(
What is the missing number in the box? 288 ÷ 6 = 6 x
(1)
6
(2) 8
(3)
48
(4) 288
Express 4390 m in km and m.
(1)
4 km 390 m
(3)
43 km 90 m
(3)
12.
13.
(2)
(4)
(
)
(
)
(
)
(
)
43 km 9 m
439 km 0 m
1 1 1
, , from greatest to smallest.
4 3 5
1 1 1
1 1 1
, ,
, ,
(2)
4 3 5
3 5 4
1 1 1
1 1 1
, ,
, ,
(4)
5 4 3
3 4 5
Arrange
(1)
11.
)
My mother’s height is about _________ .
(1)
16 cm
(2) 16 m
(3)
160 cm
(4) 160 m
A store is open from 8.30 a.m. to 11.00 p.m. daily. For how long is the
store open everyday?
(1)
2 h 30 min
(2) 13 h 30 min
(3)
14 h 30 min
(4) 19 h 30 min
(
)
Add 100 to the smallest 4-digit number formed by 3,0,5,8. What will
the answer be?
(1)
2958
(2) 3158
(3)
3185
(4) 5138
(
)
74
14.
Which of the following fraction is smaller than
1
5
2
3
(1)
(3)
15.
(2)
(4)
1
2
4
5
but greater than
(
?
)
The perimeter of a book is 66 cm. Its length is 19 cm. Find its breadth.
(1)
14 cm
(2) 28 cm
(3)
47 cm
(4) 85 cm
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided.
16.
+
+
+
+
+
+
What is the value of
17.
= 48
+
= 57
?
Ans: _____________________
The difference between 23 hundreds and 101 tens is _________ .
Ans: _____________________
75
18.
19.
Anna’s weight is 49 kg. Her brother is 13 kg heavier than her. What is
their total weight?
Ans: _____________________
Carol had 2 two-dollar notes, 5 fifty-cent coins and some ten-cent coins.
If she had $7.2 altogether, how many ten-cent coins did she have?
Ans: _____________________
20.
$65.75 + $47.50 = __________.
Ans: _____________________
76
21.
85 -
=
7 x 9
Ans: _____________________
22.
23.
For every 5 pencils sold, Terry will earn $12. How much will he earn if he
sells 20 pencils?
Ans: _____________________
50 minutes before 12.15 pm is ___________ .
Ans: _____________________
77
24.
25.
26.
What is the sum of
5
1
+
?
8
4
Ans: _____________________
There are three groups of pupils A, B, C with total 369 pupils. Group A
has 36 pupils fewer than group B but 42 pupils more than group C. How
many pupils are there in group A?
Ans: _____________________
The perimeter of a square is 28 m. What is the area of the square?
Ans: _____________________
78
27.
Kate wants to buy a book. She has 5 five-dollar notes and 4 two-dollar
notes but he is still short of 1 ten-dollar note. How much does the book
cost?
Ans: _____________________
28.
3 h 45 min + 6 h 55 min = ______
29.
Ans: _____________________
Darwin has 32 candies more than Rachel. How many candies must Darwin
give Rachel so that Rachel will have 16 candies more than Darwin?
Ans: _____________________
79
30.
31.
32.
A cup of mango juice and two bottles of mango juice can fill a jug with
capacity of 3 litres. If the bottle has capacity of 1.2 l, what is the
capacity of the cup?
Ans: _____________________
Laura is 22 years old and her sister is 5 years younger than her. What
was their total ages 3 years ago?
Ans: _____________________
Cheryl took 3 hours 35 minutes to do Math and English exercises. She
started to do Math exercises at 11.45 am and finished at 1.40. pm. How
long did he take to do English exercises?
Ans: _____________________
80
33.
34.
How many angles are smaller 1 right angle in the figure below?
Ans: _____________________
I am a 4-digit number. The digit in my thousands place is three times as
in my tens place. The digit in my tens place is twice as the digit in my
hundred places. The digit in my ones place is same the digit in my
hundred places and is 1. What number am I?
Ans: _____________________
81
35.
Lily wanted to eat 2 different favors of ice creams with brownies. She
has vanillas, chocolates, and strawberries. How many ways could she
choose the 2 different favor of ice creams?
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided.
36.
Mr. Tay worked 8 hours daily from Monday to Friday and 6 hours on
Saturday. He was paid $8 per hour on weekdays and $4 more per hour on
Saturday. How much did her earn for a week?
Ans: _____________________
82
37.
38.
39.
Tom ran 4 km and walked 750 m. What was the total distance he
covered?
Ans: _____________________
Sophia bought some T-shirts and pants. The t-shirts were sold at 3 for
$20 and the pants were sold at 2 for $30. She spent the same amount of
money on T-shirts and pants. If she spent $120, how many T-shirts and
how many pants did she buy?
Ans: _____________________
The total height of Jessica, Cindy, and Samuel is 480 cm. Jessica is 25
cm shorter than Samuel while Cindy is 20 cm shorter than Jessica. Find
Samuel’s height.
Ans: _____________________
83
40.
Mrs. Lee made 360 fish balls. She sold
fish balls were left unsold?
41.
42.
5
of the fish balls. How many
9
Ans: _____________________
Alan has 4320 stamps and Kate has 3480 stamps. How many stamps must
Alan give to Kate so that they will have the same number of stamps?
Ans: _____________________
In a funfair, Sam sold 30 hot dogs at $4 each and Lily sold three times
the number of hot dogs at $2 each. How much more money did Lily
collect than Sam?
Ans: _____________________
84
43.
Jane has 14 phone cards. She gave 5 cards to her to her sister and 6
cards to her friend. What fraction of her phone cards had she left?
Ans: _____________________
44.
The mass of box A is 2764 g. The mass of box B is 284 g less. What is
the total mass of the two boxes?
Ans: _____________________
85
45.
Sarah spent half of her money on a dress. She spent half of the
remaining money on a skirt. She had $26 left. How much did she have at
first?
Ans: _____________________
86
Semestral Assessment 2 Mock Paper 3
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. Write the number of the correct option in the bracket provided.
1.
How many tens must be added to make 4570 to 8570?
(1)
4
(2) 40
(3)
400
(4) 4000
(
2.
3.
4.
The product of two numbers is 295. If one number is 5, what is the
other number?
(1)
29
(2) 54
(3)
55
(4) 59
(
)
)
7 thousands + 20 hundreds + 48 ones = __________ .
(1)
7248
(2) 7068
(3)
9048
(4) 72048
What is the product of 438 and 6?
(1)
2428
(2)
(3)
2588
(4)
(
)
(
)
2488
2628
5.
A book is twice as heavy as a packet of biscuits. The book is 380 g. What
is the mass of 7 packets of biscuits?
(1)
190 g
(2) 380 g
(3)
1330 g
(4) 2660 g
(
)
6.
4730 is 840 more than ___________ .
(1)
3890
(2)
(3)
4990
(4)
3990
5570
(
87
)
7.
8.
The area of a rectangular is 128 m2. The length is 16 m. What is the
breadth?
(1)
8m
(2) 16 m
(3)
48 m
(4) 112 m
(
Express 3 kg 56 g in grams.
(1)
356
(3)
3560
(2)
(4)
)
3056
3650
(
)
9.
Lim finished his 30-minute exercise at 7.25 a.m. What time did he start
his exercise?
(1)
6.30 a.m.
(2) 6.55 a.m.
(3)
7.05 a.m.
(4) 7.55 a.m.
(
)
10.
Kim has 72 cards. Ben has 6 times as many cards as Kim. How many cards
does Ben have?
(1)
(3)
11.
12.
12
432
(2)
(4)
6
is equivalent to __________.
7
10
(1)
14
12
(3)
21
(2)
(4)
66
504
18
14
18
21
(
)
(
)
Cindy has 7 fifty-cent coins, 6 twenty-cent coins, and 9 five-cent coins.
How much money does she have altogether?
(1)
$5.15
(2) $4.75
(3)
$3.75
(4) $0.75
(
)
88
13.
Ken bakes 24 trays of 10 cakes every day. How many cakes will she bake
on 9 days?
(1)
90
(2) 216
(3)
306
(4) 2160
(
)
14.
A clock is 15 minutes fast. It shows 12.05 a.m. What is the actual time
now?
(1)
11.40 p.m.
(2) 11.50 p.m.
(3)
11.50 a.m.
(4) 12.20 a.m.
(
)
15.
The perimeter of a rectangle is 72 cm. The length is twice as long as the
breadth. How long is the length?
(1)
8 cm
(2) 12 cm
(3)
24 cm
(4) 36 cm
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided.
16.
17.
Complete the number pattern below:
4735, 4760, 4785, _________, 4835.
Ans: _____________________
9 + 9 + 9 + 9 + 9 + 9 + 9 = 36 + 9 x
What is the missing number?
Ans: _____________________
89
18.
35 minutes before 7 a.m. is _________ .
19.
Ans: _____________________
Ashley paid for a pair of shoes which cost $69.35 with 2 fifty-dollar
notes. How much change should she get?
20.
Ans: _____________________
4
? Give your answer in the simplest form.
What is 1 16
Ans: _____________________
90
21.
What is $75.85 in cents?
22.
Ans: _____________________
How many angles are smaller than a right angle in the figure below?
23.
Ans: _____________________
Kelvin’s lunch break lasted for 55 minutes. It started at 11.50 a.m. When
did his lunch break end?
Ans: _____________________
91
24.
25.
26.
Mrs. Lee needs 2 kg sugar to bake a cake and 1 kg sugar to bake 20
cookies. How much sugar does she need to bake 2 cakes and 120 cookies?
Ans: _____________________
Three boys are painting a wall. If each boy paints 9 m of the wall each
day, how long is the wall if three boys take 8 days to paint the whole
length of the wall?
Ans: _____________________
Five children want to share 20 pieces of cake. How many pieces of cake
did each child get ?
Ans: _____________________
92
27.
28.
29.
Alice is 29 years old now. Her father was twice as old as her 2 years ago.
How old is her father now?
Ans: _____________________
The capacity of a bottle is 4 litres. There is 2265 ml water in the bottle.
How much more water must be added to fill the bottle completely?
Ans: _____________________
Six girls spent a total of $12 on video games. Each of them spent an
equal amount of money. How many games did each girl play if one game
costs 50 cents?
Ans: _____________________
93
30.
31.
32.
I am a 2-digit number. I am greater than 70 and divisible by 7. The sum
of my tens digit and ones digit is 12. What number am I?
Ans: _____________________
1
2
of the cake while Silas ate
Max and Silas shared a cake. Max ate
12
3
of it. What fraction of cake was left? Write the answer in the simplest
form.
Ans: _____________________
A piece of cloth, 280 m, is cut into 3 pieces. Two of them are equal in
length and the third piece is 98 m. What is the length of one of the
equal pieces?
Ans: _____________________
94
33.
How many more squares must be shaded to make
shaded?
2
of the figure below
3
Ans: _____________________
34.
A and B represent a different number each. What number does each
letter represent?
AB
AB
+ AB
8A
Ans: _____________________
95
35.
Arrange the fractions below in ascending.
3
5
1
,
,
2
4
8
Ans: _____________________
Questions 36 to 45 carry 4 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided.
36.
Ross has five times as many cards as Tom. Ross has 16 more cards than
Tom. How many cards does Ross have?
Ans: _____________________
96
37.
38.
The mass of ball A is 3 kg. The mass of ball B is 750 g less. What is the
total mass of the two balls?
Ans: _____________________
Bell, Thomas and Stella have 1458 stickers together. Bell has 189
stickers. Thomas has 4 times as many stickers as Bell. The rest of the
stickers belong to Stella. How many stickers does Bella have?
Ans: _____________________
97
39.
40.
Pens were sold at 4 for $11, pencils were sold at 3 for $5 and rulers
were sold at 2 at $7. Kim bought 8 pens, 9 pencils and 2 rulers. She had
$17 left. How much money did she have at first?
Ans: _____________________
7 rectangular cars of the same are places together to form a large
rectangular as shown below. Find the area of the large rectangular.
4m
8m
Ans: _____________________
98
41.
Carol had 720 beads. There were twice as many red beads as blue beads.
If she lost 87 red beads, how many red beads had she left?
Ans: _____________________
42.
Maria, Liz and Alex had $1340 together. Maria had thrice as much money
as Liz. Liz had $200 less than Alex. How much did Maria had?
Ans: _____________________
99
43.
The figure below is made up of a square and a rectangular. Find the
perimeter of figure.
5 cm
6 cm
3 cm
Ans: _____________________
44.
A frog jumped 8 m up a wall during daytime and slipped down 3 m during
nighttime. If this happened every day, how many days would the frog
take to reach the top of the wall 37 m in height?
Ans: _____________________
100
45.
Mandy had some fruit juices. She used 300 ml and poured the rest
equally into 4 containers. If each container has a capacity of 145 ml, how
much fruit juices did she have at first?
Ans: _____________________
101
Semestral Assessment 2 Mock Paper 4
Marks
Duration: 1 hr 45 min
Questions 1 to 10 carry 1 mark each and Questions 11 to 15 carry 2 marks
each. Write the number of the correct option in the bracket provided.
1.
2.
In 7014, the digit _________ is in the hundreds place.
(1)
0
(2) 1
(3)
4
(4) 7
How many tens are there in 3750?
(1)
5
(3)
375
(2)
(4)
75
3750
3.
Which one of the following has the same value as 6035?
(1)
600 + 30 + 5
(2) 6000 + 30 + 5
(3)
6000 + 300 + 5
(4) 6000 + 300 + 50
4.
3
?
Which one of the following fraction is equivalent to
4
3
6
(1)
(2)
8
8
3
1
(4)
(3)
2
12
7 hundreds more than 8340 is _________.
(1)
8347
(2) 8410
(3)
8040
(4) 9040
5.
6.
7 x 5 is the same as __________ .
(1)
7 x 7 x 7 x 7 x 7
(2)
5 x 5 x 5 x 5 x 5 x 5 x 5
(3)
7 + 7 + 7 + 7 + 7
(4)
5 + 5 + 5 + 5 + 5
102
(
)
(
)
(
)
(
)
(
)
(
)
7.
8.
9.
10.
11.
Express 245 minutes in hours and minutes.
(1)
0 h 45 minutes
(2) 2 h 45 minutes
(3)
3 h 05 minutes
(4) 4 h 05 minutes
7 kg 7 g is the same as _________ .
(1)
77 g
(2)
(3)
7007 g
(4)
(
)
(
)
(
)
(
)
(
)
What is the different between 3649 and 7058?
(1)
3409
(2) 3419
(3)
4409
(4) 4619
1
+
6
(3)
13.
)
707 g
7070 g
When 4789 is divided by 9, what is the quotient?
(1)
1
(2) 501
(3)
531
(4) 532
(1)
12.
(
=
1
12
1
2
3
. What is the missing number in the box?
12
1
(2)
6
5
(4)
12
65 g more than 3 kg is __________.
(1)
68 g
(2)
(3)
3065 g
(4)
2935 g
3650 g
The length of a square is 8 cm. What is the perimeter of the square?
(1)
16 cm
(2) 24 cm
(3)
32 cm
(4) 64 cm
(
103
)
14.
How many
(1)
(3)
18
6
1
s are there in 3 whole?
6
(2)
(4)
12
3
(
15.
)
The capacity of a pail is 1300 ml. How many bottles of 200 ml of water
are needed to fill the pail to the brim?
(1)
5
(2) 6
(3)
7
(4) 8
(
)
Questions 16 to 35 carry 2 marks each. Write your answers in the spaces
provided.
16.
3008 m = ______ km ______ m
17.
58 hundreds 0 tens 9 ones = ___________ .
18.
Write 3770 in words.
104
19.
A number when divided by 9 gives a quotient of 36 and a remainder of 7.
What is the number?
20.
Ans: _____________________
Arrange the number from the largest to smallest : 2733, 3723, 2337,
2373.
21.
Multiply the values of the digit 7 in 2781 with 5, what do you get ?
Ans: _____________________
105
22.
How many times can 7 be subtracted from 84?
Ans: _____________________
23.
How many sixes are there in 72?
Ans: _____________________
24.
25.
1
1
=
4
20
What is the missing fraction in the box? Give the answer in the simplest
form.
Ans: _____________________
15 bottles of water are needed to fill up a pail and 4 cups of water are
needed to fill up a bottle. If the pail has a capacity of 30 l, what is the
capacity of a cup?
Ans: _____________________
106
26.
Find the smallest fraction:
27.
Ans: _____________________
Look at these angles and complete the sentence.
5
2
5
3
,
,
,
3
6
4
12
Angle ______ is the smallest.
A
28.
29.
B
C
For every six T-shirts sold, Harry earns $14. How much will he earn if he
sells 24 T-shirts?
Ans: _____________________
The perimeter of a rectangle is thrice the perimeter of the square
below. Alvin made 5 such rectangles with a piece of wire. How long is the
wire?
6 cm
Ans: _____________________
107
30.
31.
32.
Mrs. Ho made 405 cookies. She put them equally into boxes with 9
cookies in each box. If she sells each box for $7, how much money will
she earn after all boxes are sold?
Ans: _____________________
Dennis practices tennis from 4.45 p.m. to 6.30 p.m. daily. How long does
he practice?
Ans: _____________________
Jackie has 3 coins which gives a total value of $0.60. Write down 2
possible sets of value for his coins.
Set A:
Set B:
108
33.
Daniel had 4 times as much money as Peter. After Daniel spent half of
his money, he had $70 more than Peter. How much money did Daniel have
at first?
Ans: _____________________
34.
35.
I am a 3-digit number. The digit in ones place is 4. The digit in tens place
is twice the digit in ones place. The sum of the three digits is 15.
Ans: _____________________
Katie cut a pizza into 8 slices. She ate 2 slices and her brother ate 3
slices. What fraction of the cake had she left?
Ans: _____________________
109
Questions 36 to 45 carry 4 marks each. Show your working clearly in the
space below each question and write your answers in the spaces provided.
36.
37.
Ribbon A is 20 m. It is cut into 2 pieces. The first piece is longer than
the second piece by 80 cm. Find the length of the first piece in m and
cm.
Ans: _____________________
Jenifer made a cake. She cut it equally into 16 pieces. She gave her
sister 8 pieces and her friend 4 pieces. What fraction of the cake was
left?
Ans: _____________________
110
38.
Mike ran 4 times round a jogging track. Henry ran 7 times round the
same jogging track. If the distance Mike ran is 960 m, what is the
distance Henry ran? Give the answer in km and m.
Ans: _____________________
39.
The mass of a metal ball is 3 times as heavy as a wooden ball while a
wooden ball is 3 times as heavy as a plastic ball. If the total mass of the
three balls is 1170 g, what is the mass of the wooden ball?
Ans: _____________________
111
40.
41.
Nancy made some mango juice. She filled 8 bottles, each containing 450
ml of juice and had 400 ml left. How much juice did Nancy make?
Ans: _____________________
Tom and Michael collected 1450 stamps altogether. Tom had 190 more
stamps than Michael. How many stamps did Tom have?
Ans: _____________________
112
42.
43.
Ariel took 55 minutes to do her Math home works and another 45
minutes to do her English home work. She started at 8.45 p.m. What
time did she finish?
Ans: _____________________
The rectangle below is made up of 4 squares. If the perimeter of the
square is 20m, find the perimeter of the rectangular.
length
breadth
Ans: _____________________
113
44.
45.
Mrs. Tan has some paper clips. If she gives 8 paper clips to each of her
pupils, she will have 4 paper clips left over. If she gives 10 paper clips to
each of her pupils, she will be short of 8 paper clips. How many paper
clips does she have?
Ans: _____________________
Brian walked 850 m to Leona’s house and then they walked together to
the bus stop. The distance from Leona’s house to the bus stop is 470 m
longer than the distance from Brian’s house to Leona’s house. What was
the total distance Brian walked?
Ans: _____________________
114
Answers to Semestral Assessment 1 Mock Paper 1
Q1
4
Q2
3
16) 48
24) 9430
32) $292
36)
37)
38)
39)
40)
Q3
2
Q4
2
17) 5918
25) 3385
33) 6
Q5
3
Q6
4
Q7
1
Q8
2
18) 2626 19) 600
26) 797
27) 4429
34) 4th floor
69 + 35 = 104
Mrs. Linda needed 104 cookies
to give to pupils.
104 ÷ 4 = 26 pupils
There were 26 pupils in her class.
145 x 5 = 735
Cheryl’s sister has 735 stamps.
735 + 147 = 882
They have 882 stamps together.
9 + 2 = 11
Kelvin is 11 in 2 years’ time.
11 x 2 = 22
Kelvin’s brother is 22 in 2 year’s
time.
22 – 2 = 20
Kelvin’s brother is 20 years old
now.
500 – 120 = 380
380 – 160 = 220
James had left $220.
12 x 8 = 96
12 boys received 96 stickers.
13 x 6 = 78
13 girls received 78 stickers.
78+ 96 = 174
They received 174 stickers
together.
Q9
3
Q10 Q11 Q12 Q13 Q14 Q15
1
4
2
3
3
4
20) 32
28) $40
35) 7099
21) 8020 22) 5026
29) 4
30) $6.2
23) 95
31) $65
41)
1600 – 80 = 1520
Mr. Lee sold 1520 books in February.
4200 – 1600 = 2600
Mr. Lee sold 2600 books in February
and March.
2600 – 1520 = 1080
In March, he sold 1080 books.
42)
440 – 158 = 282
Zhi Ping has 282 stickers.
282 ÷ 3 = 94
Lim has 94 stickers.
440 + 282 + 94 = 816
They have 816 stickers together.
43)
100 – 67 = 33
Box C contains 33 mangoes.
68 – 33 = 35
Box B contains 35 mangoes.
44)
28 ÷ 2 = 14
A skirt cost $14.
84 ÷ 14 = 6.
6 skirts can be bought with $84.
45)
1 bag: 21 oranges
6 bags : 21 x 6 = 126 oranges
126 ÷ 9 = 14
There were 14 oranges in each box.
115
Answers to Semestral Assessment 1 Mock Paper 2
Q1
1
Q2
2
Q3
2
Q4
3
16) 6314 17) 3925
23) $2347 24) 83
30) 35
31) 5173
Q5
4
Q6
1
18) 3790
25) 3057
32) 221
Q7
3
19) 6133
26) 5850
33) 15
36)
$369 + $177 = $546
The scanner costs $546.
$369 + $546 = $915
He has to pay $915 in total.
37)
84 ÷ 14 = 6
He bough 6 boxes of candies.
6 x 12 = 72.
Alan bought 72 candies.
38)
39)
40)
Q8
3
1749 - 458 = 1291
Annie has 1291 stickers.
1291 – 250 = 1041
Tom has 1041 stickers.
1749 + 1291 + 1041 = 4081
They have 4081 stickers together.
2200 – 1500 = 700
He saves $700 every month.
A year has 12 months.
700 x 12 = 8400
He will save $8400 a year.
927 x 3 = 2781
James has 2781 stamps.
927 + 2781 = 3708
They have 3708 stamps together.
3708 ÷ 2 = 1854
Each of them has 1854 stamps if
they share equally.
Q9
4
Q10 Q11 Q12 Q13 Q14 Q15
1
3
4
2
4
3
20) $31
27) 13
34) 24
21) 3
28) 495
35) 7
22) $8.4
29) 20
41)
12 + 14 + 15 = 41
There were 41 fruits in each basket.
41 x 4 = 164.
There were 164 fruits in 4 such
baskets.
42)
359 + 164 = 523
There were 523 men at the concert.
359 + 523 = 882
There were 882 people at the concert.
43)
16 x 2 = 32
Kim has 32 marbles.
32 x 4 = 128
Jimmy has 128 marbles.
32 + 16 = 48
128 + 48 = 176
They have 176 marbles together.
44)
4 x 24 = 96
She had 96 cookies.
96 ÷ 16 = 6.
Each pupil got 6 cookies.
45)
$9520 – $2270 = $7250
She saved $7250 from January to
May.
$7250 ÷ 5 = $1450.
Katie saved $1450 in April.
116
Answers to Semestral Assessment 1 Mock Paper 3
Q1
1
Q2
3
16) 3556
24) 2477
32) 228
Q3
2
Q4
4
17) 7025
25) $120
5
33)
8
Q5
4
Q6
2
18) 760
26) 16
Q7
2
Q8
3
19) 3216
27) 510
34) 3
Q9
4
Q10 Q11 Q12 Q13 Q14 Q15
3
1
2
4
1
3
20) 20
21) $744
28) $6110 29) 157
22) 119
30) 2700
23) 15
31) 32
35) 33
36)
283 + 435 + 587 = 1305.
She had totally 1305 marbles.
1305 ÷ 9 = 145.
Each box had 145 marbles.
42)
1 unit : 348 ÷ 3 = 116
2 units: 116 x 2 = 232
232 + 58 = 290
Ben had 290 stickers at first.
37)
1346 – 458 = 888
He has 888 stickers after
throwing away 458 stickers.
888 ÷ 7 = 126 remainder 6.
He has 6 stickers left.
43)
145 x 4 = 580
There are 580 adults at the concert.
145 + 580 = 725
There are 725 people at the concert.
44)
2880 + 490 = 3370
Steven earned $3370.
8700 – 2880 = 5820
5820 – 3370 = 2470
Daniel earned $2450.
45)
352 ÷ 8 = 44.
She had 44 bags of apples.
44 – 5 = 39
She sold 39 bags of apples.
39 x 5 = 195
She received $195 after selling 39
bags.
38)
28 x 6 = 168
There were 168 pupils.
4 x 168 = 672
They paid $672 altogether.
39)
129 ÷ 9 = 14 remainder 3
14 + 1 = 15
She used 15 pages.
40)
44 ÷ 4 = 11
A T-shirt costs $11.
132 ÷ 11 = 12
12 T-shirts can be bought.
41)
25 + 38 = 63
They save $63 together.
80 – 63 = 17
They have to save $17 more to
buy the present.
117
Answers to Semestral Assessment 1 Mock Paper 4
Q1
3
Q2
4
Q3
1
Q4
4
Q5
2
Q6
4
Q7
3
Q8
1
Q9
3
Q10 Q11 Q12 Q13 Q14 Q15
3
4
3
2
4
1
16) 7345
17) 7860
18) 9090
19) $43.10
22) 133
28) 3010
33) 6
23) $24.85
29) 2kg
34) 28
24) 49m
30) 1032
35) 58
25) $20.30
26) 4590
31) 41 years old
36)
37)
38)
39)
40)
264 – 129 = 135.
The chair costs $135.
264 + 135 = 399
The total cost of the table and the
chair is $399.
320 ÷ 8 = 40
Emily has 40 paper clips.
320 – 70 = 250
Jason has 250 paper clips.
320 + 40 + 250 = 610
They have 610 paper clips together.
7 x 2 = 14
50 – 14 = 36
36 ÷ 4 = 9
A child’s ticket cost $9.
624 ÷ 6 = 104
He sold 104 boxes of chocolates.
8 x 104 = 832
He earned $832 altogether.
4368 – 2469 = 1899
There are 1899 red beads.
2469 – 1899 = 570
There are 570 more blue beads than
red beads.
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Number
of coins
saved
each day
1
3
5
7
9
11
13
21) 232
27) 3
32) 112
25
36
49
49 x 10 cent = 490 cent = $4.90
She will save $4.90 for the whole
week
42)
300 – 109 = 191
He had $191 left.
191 + 49 = 240
The hand phone cost $240.
43)
2837 + 1860 = 4697
She sold 4607 cookies.
5703 – 4697 = 1006
1006 cookies were left at the end of
the day.
44)
59.50 + 110.50 = 170
He paid $170 for the earrings and
necklace.
50 x 2 = 100
170 – 100 = 70
He paid $70 by ten-dollar notes.
70 ÷ 10 = 7
He used 7 ten-dollar notes.
45)
5 units: 890 + 70 = 960
1 unit: 960 ÷ 5 = 192
Alan has $192.
192 x 2 = 384
Jessica has $384.
384 – 70 = 314
James has $314. 41)
Day
20) 39
Total
number
of coins
in her
piggy
bank
1
4
9
16
118
Answers to Semestral Assessment 2 Mock Paper 1
Q1
2
Q2
2
Q3
3
Q4
4
16) 2812
17) 6070 g
22) 2633
23) 285
Q5
3
=6
28) 3
29) 1075
34) 12 chicken and 8 pigs
Q6
3
Q7
1
Q8
1
Q9
4
18) 2
1
24)
3
19) $4
30) 27
35) $17
31) 2
20) 146 cm
J = 11.30 am to 1.15 pm is 1h 45 min
S = 1.30 pm to 3.00 pm is 1h 30 min
Jessica practiced longer.
37)
Tom
John
Ken
32) 4 m 23 cm
40)
168 x 6 = 1008
She bought 1008 paper clips.
1008 ÷ 9 = 112
Each pupil got 112 paper clips.
2850 – 970 = 1880
The mass of the wooden ball is
1880g.
119
33) 9
880 + 1370 = 2250
Jenifer gave 2250 stamps to Joy.
880 + 2250 = 3130
She gave away totally 3130 stamps.
5620 – 3130 = 2490
She had 2490 stamps left.
42)
8 m = 800 cm
800 cm – 40 cm = 760 cm
760 cm ÷ 2 = 380 cm
380 cm + 40 cm = 420 cm
The length of the first piece is 420 cm.
43)
36 ÷ 3 = 12
Katie had 12 kg of rice after selling 36
kg.
36 + 12 = 48
Katie had 48 kg of rice at first.
44)
$100 – $17.50 = $82.50
$82.50 – $34.50 = $48
$48 ÷ 4 = $12
The cost of each skirt was $12.
45)
1210 – 300 = 910
910 ÷ 2 = 455
Ben has 455 stamps.
1340 – 455 = 885
Lim has 855 stamps.
$1120
40 x 24 = 960
The area of the land is 960 m2.
960 ÷ 2 = 480
He used 480 m2 to build the house.
27) A = 16, B
41)
$1120 ÷ 8 = $140
$140 x 3 = $420
John saved $420.
39)
21) $175
25) 1.49 m 26) $11.45
36)
38)
Q10 Q11 Q12 Q13 Q14 Q15
1
2
4
4
1
2
Answers to Semestral Assessment 2 Mock Paper 2
Q1
2
Q2
2
Q3
4
Q4
3
Q5
2
Q6
4
Q7
1
Q8
2
Q9
1
16) 11
17) 1290
18) 111 kg
21) 22
22) $48
23) 11.25 a.m.
26) 49 m2
27) $43
31) 33 years old 32) 1 h 40 min
36)
28) 10 h 40 min
33) 4
Q10 Q11 Q12 Q13 Q14 Q15
3
3
3
2
2
1
19) 7
7
24)
8
29) 24
34) 6121
20) $113.25
25) 125
30) 600 ml
35) 3
160 fish balls were unsold.
$8 x 8 = $64
He earned $64 every weekday.
$64 x 5 = $320
He earned $320 from Monday to
Friday.
$8 + $4 = $12
$12 x 6 = $72
He earned $72 on Saturday.
$320 + $72 = $392
He earned $392 a week.
41)
4320 + 3480 = 7800
7800 ÷ 2 = 3900
4320 – 3900 = 420
Alan must give Kate 420 stamps.
42)
4 x 30 = 120
Sam collected $120.
3 x 30 = 90
Lily sold 90 hot dogs.
2 x 90 = 180
Lily collected $180.
180 – 120 = 60
Lily collected $60 more than Sam.
37)
4 km = 4000 m
4000 + 750 = 4700 m = 4 km 750
m
He covered 4 km 750 m.
38)
$120 ÷ 2 = $60
60 ÷ 20 = 3
3 x 3 = 9 T-shirts
60 ÷ 30 = 2
2 x 2 = 4 pants
He bought 9 T-shirts and 4 pants.
43)
14 – 5 – 6 = 3
Jane had 3 out of 14 phone cards
left.
The fraction of phone cards left is
3
.
14
39)
Samuel
Jessica
Cindy
44)
2764 – 284 = 2480
The mass of box B is 2480 g.
2764 + 2480 = 5244 g.
The total mass of the two boxes is
5244 g.
25 cm
10 cm
480 cm
480 – 25 – 10 = 435
435 ÷ 3 = 145
Cindy is 145 cm tall.
145 + 10 + 25 = 180
Samuel is 180 cm tall.
40)
45)
360 ÷ 9 = 40
40 x 4 = 160
dress
skirt
$26 x 4 = $104
She had $104 at first.
120
$26
Answers to Semestral Assessment 2 Mock Paper 3
Q1
3
Q2
4
Q3
3
Q4
4
Q5
3
Q6
1
Q7
1
Q8
2
Q9
2
16) 4810
17) 3
21) 7585 cents
26) 4
1
31)
4
22) 4 angles
23) 12.45 p.m.
27) 56 years old 28) 1735 ml
36)
32) 91 m
18) 6.25 a.m.
33) 7
Q10 Q11 Q12 Q13 Q14 Q15
3
4
1
4
2
3
3
19) $30.65
20)
4
24) 10 kg
25) 216m
29) 4 games
30) 84
5
3
1
34) A = 4, B = 2 35)
,
,
2
8
4
480 – 87 = 393
She had 393 red beads left.
16 ÷ 4 = 4
Tom has 4 cards.
4 + 16 = 20
Ross has 20 cards.
42) Maria Liz
Alex
37)
3 kg = 3000 g
3000 – 750 = 2250
The mass of ball B is 2250 g.
3000 + 2250 = 5250 g = 5 kg 250 g
The mass of the two balls is 5 kg 250 g.
38)
189 x 4 = 756
Thomas has 756 stickers.
189 + 756 = 945
Thomas and Bell have 945 stickers.
1458 – 945 = 513
Stella has 513 stickers.
$1340
200
$1340 – $200 = $1140
$1140 ÷ 5 = $228
Liz had $228
$228 x 3 = $684
Maria had $684.
43)
The figure below is made up of a
square and a rectangular. Find the
perimeter of figure.
5 cm
3 cm
3 cm
$11 x 2 = $22
$5 x 3 = $15
$22 + $15 + $7 = $44
She spent $44 to buy pens, pencils and
rulers.
$44 + $17 = $61.
She had $61 at first.
6 cm
40)
4 x 7 = 28
The length of the rectangular is 28 m.
28 x 8 = 224
The area of the rectangular is 224 m2.
44)
8m–3m=5m
Everyday the frog went 5 m up.
37 ÷ 5 = 7 remainder 2
It took 8 days for the frog to reach
the top of the wall.
41)
720 ÷ 3 = 240
She had 240 blue beads.
240 x 2 = 480
She had 480 red beads.
45)
145 x 4 = 580
300 + 580 = 880 ml
She had 880 ml at first.
39)
121
3 cm
2 cm
5 + 6 + 2 + 3 + 3 + 3 = 22 cm
The perimeter of the figure is 22 cm.
Answers to Semestral Assessment 2 Mock Paper 4
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15
1
3
2
2
4
3
4
3
4
1
1
3
3
1
3
16) 3 km 8 m
17) 5809
18) three thousand, seven hundred and seventy
19) 331
20) 3723, 2733, 2373, 2337 21) 3500 22) 12
23) 12
5
1
25) 500 ml
26)
27) C
28) $56
24)
5
12
29) 360 cm
30) $315
31) 1 h 45 min
32) set A: 50-cent, 5-cent, 5-cent; set B: 20-cent, 20-cent, 20-cent
33) $280
3
34) 384
35)
8
36)
37)
20 m = 2000 cm
2000 – 80 = 1920
1920 ÷ 2 = 960
The length of the second piece is
960 cm.
960 + 80 = 1040
The length of the first piece is
10m40 cm.
16 – 8 – 4 = 4,
1
4
=
16
4
The fraction of the cake left is
38)
39)
1170 g
1170 ÷ 13 = 90
The mass of the plastic ball is 90 g.
90 x 3 = 270 g
The mass of the wooden ball is
270 g.
40)
1450 – 190 = 1260
1260 ÷ 2 = 630
Michael collected 630 stamps.
630 + 190 = 820
Tom collected 820 stamps.
42)
55 + 45 = 100 min = 1 h 40 min
8.45 p.m. + 1 h 40 min = 9.25 p.m.
She finished at 9.25 p.m.
43)
20 ÷ 4 = 5
The breadth is 5 m.
5 x 4 = 20
The length is 20 m.
(5 + 20) x 2 = 50 m.
The perimeter is 50 m.
44)
4 + 8 = 12
With 12 more paper clips, each
pupil will get 2 more paper clips.
12 ÷ 2 = 6
There are 6 pupils.
6 x 10 = 60
60 – 8 = 52
Mrs. Tan has 52 paper clips.
1
.
4
960 ÷ 4 = 240 m
The length of a track is 240 m.
240 x 7 = 1680 m = 1 km 680 m
Henry ran 1 km 680 m.
Metal
Wooden
Plastic
41)
45) 850 + 470 = 1320
The distance from Leona’s house
to the bus stop is 1320 m.
850 + 1320 = 2170 m
The total distance Brian walked
was 2170 m.
450 x 8 = 3600
3600 + 400 = 4000 ml = 4 l
Nancy made 4 l of mango juice.
122