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Multiply Two Rounded Numbers

In this worksheet, students use their rounding skills to round numbers to the nearest 10 before multiplying the numbers together.

'Multiply Two Rounded Numbers' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Mixed Problems

Difficulty level:  

Worksheet Overview

In this worksheet you will learn to round numbers to the nearest ten to estimate the answer to a multiplication.

 

Example

Estimate the answer by rounding the numbers to the nearest 10 before multiplying.

 

78 x 43
A
 x 
B
 = 
C


Answer

 

78 x 43
80
 x 
40
 = 
3200

 

Remember, to work out 80 x 40, we work out 8 x 4 x 10 x 10 = 32 x 100 = 3200

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