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Example 2. Using repeated subtraction on the number line, divide 20 by 5.

Solution.

4 3 2 1

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

5 – 5 = 0 10 – 5 = 5 15 – 5 = 10 20 – 5 = 15

Here, we see that 5 has been subtracted 4 times from 20 to reach zero.

Therefore, 20 ÷ 5 = 4.

Exercise 6C

1. Divide by repeated subtraction.

a. 14 erasers among 7 children. Each child will get __________ erasers.

b. 12 balls into 3 boxes. Each box will have __________ balls.

c. 18 kites among 6 boys. Each boy will get __________ kites.

d. 20 goldfish into 5 bowls. Each bowl will have __________ fish.

2. Find the following using repeated subtraction. One has been done for
you

a. 10 ÷ 5 = 10 – 5 = 5 5 – 5 = 0 = 2

b. 18 ÷ 6 = =

c. 25 ÷ 5 = =

d. 16 ÷ 8 = =

e. 24 ÷ 4 = =

f. 30 ÷ 6 = =

3. Find the following on the number line.

a. 15 ÷ 5 =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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Division