Page 84 - ICSE Math 2

Constructing Multiplication Tables by Repeated Addition

If the same number is repeatedly added a certain number of mes, we can

write it in the form of mul plica on and construct a table.

Let’s learn how to construct the table of 2 using repeated addi on.

1 + 1 = 2 or 2 ones are 2 or 2 × 1 = 2

2 + 2 = 4 or 2 twos are 4 or 2 × 2 = 4

3 + 3 = 6 or 2 threes are 6 or 2 × 3 = 6

4 + 4 = 8 or 2 fours are 8 or 2 × 4 = 8

5 + 5 = 10 or 2 fi ves are 10 or 2 × 5 = 10

6 + 6 = 12 or 2 sixes are 12 or 2 × 6 = 12

7 + 7 = 14 or 2 sevens are 14 or 2 × 7 = 14

8 + 8 = 16 or 2 eights are 16 or 2 × 8 = 16

9 + 9 = 18 or 2 nines are 18 or 2 × 9 = 18

10 + 10 = 20 or 2 tens are 20 or 2 × 10 = 20

Similarly, we can construct the table of 3 using the method of repeated addi on.

1 + 1 + 1 = 3 or 3 ones are 3 or 3 × 1 = 3

2 + 2 + 2 = 6 or 3 twos are 6 or 3 × 2 = 6

3 + 3 + 3 = 9 or 3 threes are 9 or 3 × 3 = 9

4 + 4 + 4 = 12 or 3 fours are 12 or 3 × 4 = 12

5 + 5 + 5 = 15 or 3 fi ves are 15 or 3 × 5 = 15

6 + 6 + 6 = 18 or 3 sixes are 18 or 3 × 6 = 18

7 + 7 + 7 = 21 or 3 sevens are 21 or 3 × 7 = 21

8 + 8 + 8 = 24 or 3 eights are 24 or 3 × 8 = 24

9 + 9 + 9 = 27 or 3 nines are 27 or 3 × 9 = 27

10 + 10 + 10 = 30 or 3 tens are 30 or 3 × 10 = 30

We can construct table of any number using the repeated addi on method.

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