In this worksheet, we will learn how to multiply a decimal number by a single digit number.

__Example 1 __

Work out:

3.8 × 7

**Answer 1**

If we **multiply*** *3.8 **by 10**, we get 38.

38 is a whole number, which is good.

Now work out 38 × 7 = 266.

Then **divide** 266 **by 10** to 'cancel out' the fact that we multiplied by 10 earlier.

This gives the answer 266 ÷ 10 = **26.6**.

__Example 2 __

Work out:

3.87 × 7

__Answer 2__

If we **multiply*** *3.87 **by 100**, we get 387.

387 is a whole number, which is good.

Now work out 387 × 7 = 2709.

Then **divide*** *2709 **by 100** to 'cancel out' the fact that we multiplied by 100 earlier.

This gives the answer 2709 ÷ 100 = **27.09**.