WorksheetsPlaying with numbers : NCERT Maths
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
A prime number is a number which:
a)
is divisible by 2
b)
is not divisible by 2
c)
has no factors
d)
has exactly two factors , 1 and itself
2.
The smallest prime number is:
a)
1
b)
2
c)
3
d)
None of these
3.
The prime factors of 135 are:
a)
3,3,15
b)
3,3,3,5
c)
9,5,3
d)
None of these
4.
The number which is exactly divisible by 9 is:
a)
2032
b)
5886
c)
3206
d)
6032
5.
What is the HCF 36 & 96
(a)
6.
Is 987 divisible by 7? How? Explain.
(a)
7.
Which of the following pairs is a pair of co - primes? :
a)
5,25
b)
12,48
c)
9,72
d)
5,9
8.
Using divisibility tests, determine which of following
numbers are divisible by 6:
(a) 297144 (b) 1790184
(a)
9.
What are the prime numbers till 10?
a)
2,3,5,7
b)
1,2,4,5,7
c)
2,3,4,5,6,7
10.
Do you agree that composite numbers are even numbers?
(agree / not agree)
(a)
100 %
