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example 3. Find the first five multiples of 2 as well as 3.
Solution. 2 × 1 = 2 2 × 2 = 4 2 × 3 = 6 2 × 4 = 8 2 × 5 = 10

The first five multiples of 2 are 2, 4, 6, 8 and 10.
3 × 1 = 3 3 × 2 = 6 3 × 3 = 9 3 × 4 = 12 3 × 5 = 15

The first five multiples of 3 are 3, 6, 9, 12 and 15.

example 4. Find the first five even multiples of 9.
Solution. The first five even numbers are 2, 4, 6, 8 and 10. Multiply each of these even

numbers by 9.
9 × 2 = 18 9 × 4 = 36 9 × 6 = 54 9 × 8 = 72 9 × 10 = 90
The first five even multiples of 9 are 18, 36, 54, 72 and 90.

example 5. Find the first five odd multiples of 9.

Solution. The first five odd numbers are 1, 3, 5, 7 and 9. Multiply each of these odd numbers
by 9.
9 × 1 = 9 9 × 3 = 27 9 × 5 = 45 9 × 7 = 63 9 × 9 = 81

Thus, the first five odd multiples of 9 are 9, 27, 45, 63 and 81.

Exercise 5A

1. Mr. Froggy jumps on every third rock. Colour the rocks jumped on by Mr. Froggy
in red.

1 2 3 4 5 6 7 8 9 10 11 12
2. Find the first six multiples of:
a. 7 b. 9 c. 11 d. 15 e. 18 f. 25

3. Write the first five even multiples of:

a. 5 b. 7 c. 11 d. 13 e. 15 f. 25

4. Write the first five odd multiples of:

a. 3 b. 17 c. 19 d. 21 e. 27 f. 35

5. Colour the vases which contain numbers that are the multiples of 8.

72 96 110 120 144 196 280

82 Mathematics 4