Question

Yoko says that when you divide 75 by 5, the answer is 15. How can you check her answer? is she correct?

Answer 1

Dividing by 5

Two methods...

1

How can we divide easily by 5?

We know

`5=(10)/(2)`

Then

`(75)/(5)=(75)/((10)/(2))=(75\cdot2)/(10)=(150)/(10)=15`2

The common method