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  1. Maths
  2. Year 9
  3. Special Numbers (powers, roots, standard form)
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Multiplying Indices

In this worksheet, children must multiply numbers expressed using indices.

'Multiplying Indices' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Understand Integer Powers/Real Roots

Difficulty level:  

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Worksheet Overview

An index is sometimes called a power or an exponent.  

In 54, the 4 is the index and the 5 is the base.

54 is read as "5 to the power 4" or "5 to the 4" and means 5 x 5 x 5 x 5.

 

Multiplying numbers

When we multiply numbers with the same base number, we can just add the indices.

54 x 53 = 57

This is because 5 x 5 x 5 x 5 x 5 x 5 x 5 = 57

 

 

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