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Practise Combined Operations Using a Calculator

In this worksheet, students use a calculator to carry out more complex calculations.

'Practise Combined Operations Using a Calculator' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Calculators/Technology for Accuracy

Difficulty level:  

Worksheet Overview

This worksheet is about carrying out complex calculations on a calculator.

 

Example

Use your calculator to work out the following to 1 decimal place:

 

40 × (84.2 - 31)
√ (102 + 87)
 

 

Answer

Type the following carefully into your calculator:

40 x ( 84.2 - 31 ) ÷  √ ( 10 ^ 2 + 87 ^ 2 ) =

 

This gives the answer 24.29977513.

We round this off to 1 decimal place to give the answer 24.3

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