Division by 10 and 100

In this activity, you will divide whole numbers by 10 and 100.

When we divide by 10, we shift each digit one place to the right.

So 64 ÷ 10 = 6.4

When we divide by 100, we shift each digit two places to the right.

So 64 ÷ 100 =  0.64

Notice how we needed to put a place holder in the ones column to show there are 0 ones.

 

e.g. Work out:

37 ÷ 100

 

Answer:

Shift each digit two places to the right.

So 37 ÷ 100 =  0.37

 

e.g. Work out:

7 ÷ 100

 

Answer:

Shift each digit two places to the right.

We need to use place holders in the ones and tenths columns to show there are 0 ones and 0 tenths.

So 7 ÷ 100 =  0.07

 

e.g. Work out:

30 ÷ 100

 

Answer:

Shift each digit two places to the right.

Leave off the last zero - we don't need to show that there are no hundredths.

So 30 ÷ 100 =  0.30 = 0.3