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Multiplication of Decimal Numbers by Single Digit Numbers

In this worksheet, students must multiply one-digit numbers with up to two decimal places by whole numbers.

'Multiplication of Decimal Numbers by Single Digit Numbers' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Multiply with Two Decimal Places

Difficulty level:  

Worksheet Overview

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.

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