GRADE 7
Name:
Answer these questions in your class workbook:
1.
Write down the following numbers in words:
a)
134 517 985
b)
582 794
c)
100 000 005
d)
56 800 708
e)
70 403 302
2.
a)
b)
c)
d)
e)
What numbers do these words represent?
five hundred and eighty nine million, three hundred and twelve thousand, four hundred and ninety
seventeen million, two hundred thousand and fourteen
three hundred and four million, five hundred and eighty-six thousand, nine hundred and eleven
nine hundred and ninety million, four hundred and five thousand, and sixteen
eight hundred and sixty-two million, four hundred and fifty-seven thousand, three hundred and nine
3.
Fill in <, > or =:
a)
456 789 900____ 456 798 900
b)
360 000 040 ____ 360 000 040
c)
467 899 999 ____ 467 899 899
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Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers
GRADE 7
d)
e)
f )
g)
h)
i)
j)
405 500 400 ____ 405 550 400
899 456 786 ____ 898 456 786
467 827 304 ____ 476 872 304
734 756 502 ____ 734 765 502
276 459 765 ____ 267 459 765
765 906 005 ____ 765 906 005
765 767 697 ____ 765 767 796
4.
Write these numbers in ascending order (smallest to biggest):
a)
456 738
456 783
465 783
465 738
467 583
468 753
b)
897 000
789 000
879 000
c)
568 904 453 d)
768 900 450 e)
674 657 648 889 000
798 000
987 000
568 905 443
568 903 543 568 093 543
768 800 450
786 900 504 786 900 054
674 675 648
674 657 864 674 657 468
5.
Write these numbers in descending order (biggest to smallest):
a)
365 964 501 365 946 501
356 946 501 365 964 510
b)
386 594 036 386 954 036
386 954 306 368 549 360
c)
865 930 472 865 903 472
856 930 472 865 930 742
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Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers (2)
GRADE 7
d)
347 657 346 347 576 354
347 678 895 347 657 463
e)
734 608 934 734 680 934
734 860 934 743 806 943
6.
Give the value of the underlined digit:
a)23 647 604
b)
306 409 564
c)
d)865 952 957
e)
350 265 083
740 659 065
7.
How much is the 2 worth in each of these numbers?
a)
324 075 104
b)
234 693 476
c)
d)
879 860 234
e)
497 028 397
469 203 434
8.
Which whole number is halfway between
a)
273 640 845 and 273 640 849
b)
348 569 346 and 348 569 350
9.
Round off the following amounts to the nearest 5c:
a)
R123, 56 b)
R 1567, 72 c)
R3 567, 45 d)
R67, 99 e)
R145, 84 10.
Fill in the missing numbers on the number lines:
345 672 300
345 672 400
2 856
2 956
56 930
56 940
Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers (3)
345 672 450
3 256
56 960
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What is a prime number?
12.
List all the prime numbers between
a)
10 and 20 b)
c)
90 and 100 d)
e)
60 and 75 40 and 50 25 and 35 13. Read each of the stories carefully before answering the questions:
a)
Thoko’s mom would like to buy a car. She sees two cars that are the exact
same model, that she likes. The first car costs R134 500 and the second car costs R135 400. Which car should Thoko’s mom buy? Give a reason for your answer.
b)
Abigail writes the 123 495 908 in expanded notation like this
1 000 000 + 20 000 000 + 3 000 000 + 400 000 + 90 000 + 5 000 + 90 + 8
Is Abigail’s answer correct? Give a reason for your answer.
c)
Some stores round off the bill’s total to the nearest 5c. If the total amount for the grocery shop was R 1398. 97, how much should Johan’s mom pay?
d)
If Johan’s mom pays R1 500, what should her change be?
e)
Sibu counts all the prime numbers between 1 and 20 and gives his answer
as 4.
i)
Is Sibu correct?
ii)
If you answered “no”, write the corrections so that Sibu can see how many prime numbers there are between 1 and 20.
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Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
11.
GRADE 7
Comparing Whole Numbers (4)
Name:
Answer these questions in your class workbook:
1.
Write down the following numbers in words:
a)
134 517 985
one hundred and thirty-four million, five hundred and seventeen
thousand, nine hundred and eighty- five
b)
582 794
five hundred and eighty-two thousand, seven hundred and ninety-four
c)
100 000 005
one hundred million and five
d)
56 800 708
fifty-six million, eight hundred thousand, seven hundred and eight
e)
70 403 302
seventy million, four hundred and three thousand, three hundred
and two
2.
What numbers do these words represent?
a)
five hundred and eighty nine million, three hundred and twelve thousand, four hundred and ninety589 312 490
b)
seventeen million, two hundred thousand and fourteen 17 200 014
c)
three hundred and four million, five hundred and eighty-six thousand, nine hundred and eleven 304 586 911
d)
nine hundred and ninety million, four hundred and five thousand,
and sixteen990 405 016
e)
eight hundred and sixty-two million, four hundred and fifty-seven thousand, three hundred and nine862 457 309
3.
Fill in <, > or =:
a)
456 789 900
<
456 798 900
b)
360 000 040 =
360 000 040
c)
467 899 999 < 467 899 899
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GRADE 7
Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers: Answer Sheet
GRADE 7
d)
e)
f )
g)
h)
i)
j)
Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers: Answer Sheet (2)
405 500 400 899 456 786 467 827 304 734 756 502
276 459 765 765 906 005 765 767 697
<
>
<
<
>
=
<
405 550 400
898 456 786
476 872 304
734 765 502
267 459 765
765 906 005
765 767 796
4.
Write these numbers in ascending order (smallest to biggest):
a)
456 738
456 783
465 783
465 738
467 583
456 738
456 783
465 738
465 783
467 583
468 753
468 753
b)
789 000
789 000
897 000
987 000
879 000
798 000
889 000
879 000
798 000
889 000
987 000
897 000
c)
568 904 453 568 093 543
568 905 443
568 903 543
568 903 543 568 904 453
568 093 543
568 905 443
d)
768 900 450
768 800 450
768 800 450
768 900 450
786 900 504 786 900 054
786 900 054
786 900 504
e)
674 657 648
674 657 468 674 675 648
674 657 648
674 657 864
674 657 864
674 657 468
674 675 648
5.
Write these numbers in descending order (biggest to smallest):
a)
365 964 501
365 946 501
356 946 501
365 964 510
356 946 501
365 946 501
365 964 501
365 964 510
b)
386 594 036
386 549 360
386 954 036
386 594 036
386 954 306
386 954 036
368 549 360
386 954 306
c)
865 930 472
856 930 472
865 903 472
865 903 472 856 930 472
865 930 472 865 930 742
865 930 742
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d)
347 657 346
347 576 354
347 576 354
347 657 346
347 678 895
347 657 463
347 657 463
347 678 895
e)
734 608 934
734 608 934
734 680 934
734 680 934
734 860 934
743 806 943
743 806 943
734 860 934
6.
Give the value of the underlined digit:
a)
23 647 604
b)
306 409 564
c)
600 000
300 000 000 d)
865 952 957
5 000 000
e)
740 659 065
50 000
350 265 083
80
7.
How much is the 2 worth in each of these numbers?
a)
324 075 104
b)
234 693 476
c)
20 000 000
200 000 000 d)
879 860 234
e)
200
469 203 434
200 000
497 028 397
20 000 8.
Which whole number is halfway between
a)
273 640 845 and 273 640 849
b)
348 569 346 and 348 569 350
9.
Round off the following amounts to the nearest 5c:
a)
R123, 56 R123, 60
b)
R 1567, 72 c)
R3 567, 45 R3567,45
d)
R67,99 e)
R145, 84 R145, 85
10.
Fill in the missing numbers on the number lines:
345 672 300
345 672 350
345 672 400
273 640 847
348 569 348
R 1567, 70
R68,00
345 672 450
345 672 500
2 856
2 956
3 056
3 156
3 256
3 356
56 930
56 940
56 950
56 960
56 970
56 980
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GRADE 7
Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers: Answer Sheet (3)
11.
What is a prime number?
A prime number only has two factors – 1 and itself.
12.
List all the prime numbers between
a)
10 and 20 11; 13; 17; 19
b)
c)
90 and 100 97
d)
e)
60 and 75 61; 67; 71; 73
13.
a)
Read each of the stories carefully before answering the questions:
Thoko’s mom would like to buy a car. She sees two cars that are the exact same model, that she likes. The first car costs R134 500 and the second car costs R135 400. Which car should Thoko’s mom buy? Give a reason for your answer.
The one that costs R134 500 – it is less expensive
b)
Abigail writes the 123 495 908 in expanded notation like this
1 000 000 + 20 000 000 + 3 000 000 + 400 000 + 90 000 + 5 000 + 90 + 8
Is Abigail’s answer correct? Give a reason for your answer.
No, she should have written 900 + 0 + 8 instead of 90 + 8 at the end.
c)
Some stores round off the bill’s total to the nearest 5c. If the total amount for the grocery shop was R 1398. 97, how much should Johan’s mom pay?
R1 400.
d)
If Johan’s mom pays R1 500, what should her change be?
R1 500 – R1 400 = R100
40 and 50 41; 43; 47
25 and 35 29;31
e)
Sibu counts all the prime numbers between 1 and 20 and gives his answer
as 4.
i)
Is Sibu correct? No
ii)
If you answered “no”, write the corrections so that Sibu can see how many prime numbers there are between 1 and 20.
2; 3; 5; 7; 11; 13; 17; 19
There are 8 prime numbers between 1 and 20
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GRADE 7
Grade 7 Mathematics Term 1:Numbers, Operations and Relationships - Comparing whole numbers
Comparing Whole Numbers: Answer Sheet (4)