Exercise 3.1
1. Write all the factors of the following numbers.
24 are 1, 2,
15 are
21 are 1,
27 are 1,
12 are 1, 2, 3,
20 are 1, 2, 4,
18 are 1,
23 are
36 are 1, 2, 3,
2. Match the following : Observe numbers on the left and match them with the corresponding multiple/factor.
35
15
16
20
25
Multiple of 8
Multiple of 7
Multiple of 70
Factor of 30
Factor of 50
Factor of 20
3. Write first five multiples of:
a) 5 :
b) 8 :
c) 9 :
4. Find all the multiples of 9 upto 100.
27
63
45
33
10
36
72
54
65
81
18
71
90
Multiples of 9
Not Multiples of 9