How_To_Be_Good_At_Math

CALCULATING • COUNTING IN MULTIPLES 103

We can keep counting

in multiples forever

Add 8 each time

Add 3 each

time

The multiplication grid

on page 106 shows

all the multiples

up to 12 × 12.

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

4 5 6 7 8 9 10

7 98 10 11 12 13 14 15 16 17 18 19 20 21

+3 +3 +3 +3 +3

+8 +8

+6 +6 +6

+2 +2 +2

Answers on page 319

TRY IT OUT

7, 14, 21 ...

9, 18, 27 ...

11, 22, 33 ...

Find the multiples

Now you’ve seen the first few multiples of

the numbers 2, 3, 6, and 8, can you use a

number line, or count in your head, to find

the next three multiples for 7, 9, and 11?

2 × 3 = 6 2 × 4 = 8 2 × 5 = 10

3 × 4 = 12 3 × 5 = 15 3 × 6 = 18 3 × 7 = 21

6 × 3 = 18 6 × 4 = 24

8 × 2 = 16 8 × 3 = 24

102_103_Counting_in_multiples.indd 103 29/02/2016 18:56