How to solve a subtraction question that involves two numbers with decimals? 9.31 Add 'zeros' at the back of the two numbers so that - 8.2 both numbers are in the decimal place. ? same Change 8.2 to 8.20

9.31 Do the question as though the decimal -8.20 point is not there. But location of the ? the decimal place is still

Take note that although a zero is added at the back of the number, the value of the number does not change.

Type of question

9.31 Remember to put the decimal -8.20 back in its original (Answer) 1.11 location.

important.

What you need to do?

Example

Two numbers with One Decimal Place

Need not add zeros.

2.1 - 1.9 = 0.2

One number with One Decimal Place + One number with Two Decimal Place

Add zero at the back of the number 2.1 - 1.92 = ? of one decimal place Add a zero behind 2.1 forming 2.10 2.10 - 1.92 = 0.18

Two numbers with Two Decimal Place

Need not add zeros.

2.11 - 1.92 = 0.19