Multiplication Table of 15

Repeated addition by 15’s means the multiplication table of 15.

(i) When 8 rows of fifteen men each.

By repeated addition we can show 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 = 120

Then, fifteen 8 times or 8 fifteen’s

8 × 15 = 120

Therefore, there are 120 men.

(ii) When 11 flower-vase having 15 roses each.

By repeated addition we can show 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 = 165

Then, fifteen 11 times or 11 fifteen’s

11 × 15 = 165

Therefore, there are 165 roses.

We will learn how to use the number line for counting the multiplication table of 15.

$15 Times Table on Number Line$

(i) Start at 0. Hop 15, three times. Stop at 45.

3 fifteen’s are 45 3 × 15 = 45

(ii) Start at 0. Hop 15, five times.

Stop at ____. Thus, it will be 75

5 fifteen’s are 75 5 × 15 = 75

(iii) Start at 0. Hop 15, nine times.

Stop at ____. Thus, it will be 135

9 fifteen’s are 135 9 × 15 = 135

How to read and write the table of 15?

$Multiplication Table of Fifteen$

The above chart will help us to read and write the 15 times table.

Read

1 fifteen is 15

2 fifteen’s are 30

3 fifteen’s are 45

4 fifteen’s are 60

5 fifteen’s are 75

6 fifteen’s are 90

7 fifteen’s are 105

8 fifteen’s are 120

9 fifteen’s are 135

10 fifteen’s are 150

11 fifteen’s are 165

12 fifteen’s are 180

Write

1 × 15 = 15

2 × 15 = 30

3 × 15 = 45

4 × 15 = 60

5 × 15 = 75

6 × 15 = 90

7 × 15 = 105

8 × 15 = 120

9 × 15 = 135

10 × 15 = 150

11 × 15 = 165

12 × 15 = 180

Now we will learn how to do forward counting and backward counting by 15’s.

Forward counting by 15’s: 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, ……

Backward counting by 15’s: ……, 375, 360, 345, 330, 315, 300, 285, 270, 255, 240, 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 0