S
Grade – V
Mathematics HW 007
Name _______________
1.
What is a Prime number?
2.
Write all the prime numbers between 40 and 60.
3.
Write the composite numbers between 50 and 90.
4.
5.
What is the difference between prime number and composite number and give one
example?
Write all the factors of 120, 145.
6.
Find the PRIME FACTORS for the following numbers.
a.
7.
72
c.
49
d.
150
145
b.
100
c.
96
d.
40
Find first ten multiples of the following numbers and find the common multiple.
a.
9.
b.
Find the factors of the following by Factor Tree method.
a.
8.
64
7, 9
b.
6, 8
Use the divisibility tests to find if the number is divisible or not.
Numbers
390
2
3
6
5
10
4
9
8
12
22716
2151
696
4263
6534
750
10.
The student of FKS collected money for mela. Each student paid the same amount.
a.
b.
c.
d.
e.
Class
V
No. of students
25
Amount collected
Rs 85,825
VI
24
Rs. 1,20,000
VII
22
Rs 66,200
What is the total amount collected by the students of class V, VI, VII?
Who collected more of all the 3 classes?
How much more amount did class VI collect than class V?
How much money did one child pay in grade VII?
If there are 30 students in class V instead of 25, how much more collection would
they have?
MENTAL MATH
1.
Observe the pattern and find the next term in the given series:
2.
1.
Aa, Bb, Cc, Dd
______ , ______, ______.
2.
AZ, AY, AX, AW ______ , ______, ______.
3.
204, 305, 406,
4.
ABC, CDE, EFG, ______ , ______, ______.
5.
998, 887, 776,
______ , ______, ______.
______ , ______, ______.
Observe the following pattern and complete:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
= 55
11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 155
21 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29 + 30 = 255
Now follow the pattern and complete the following
3.
1.
31 + — + — + — + — + — + — + — + — + —
= __________
2.
41 + — + — + — + —+ — + — + — + — + —
= __________
3.
51 + — + — + — + — + — + — + — + — + —
= __________
4.
61 + — + — + — + — + — + — + — + — + —
= __________
5 x 5 = 25
1 x 1 =1
55 x 5 = 275
11 x 11 = 121
555 x 5 = 2775
111 x 111 = 12321
5555 x 5 = 27775
1111 x 1111 = _____________
55555 x 5 = __________
___________ x 5 = 2777775