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Read Standard Form Numbers with Negative Indices

In this worksheet, students read and write standard form numbers with negative indices as normal numbers.

'Read Standard Form Numbers with Negative Indices' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Interpret/Compare Standard Form Numbers

Difficulty level:  

Worksheet Overview

Standard (index) form is a shorthand way of writing a very large or a very small number.

It is written as a  number between 1 and 10 (but not equal to 10) multiplied by a power of 10, for example 2.94 × 102 or 4.8 × 10-3.

In this worksheet, we will just look at very small numbers.

 

Example

Change 5.83 × 10-6 into a normal number.

Answer

We divide 5.83 by 10 six times.

Each digit therefore moves 6 places to the right.

This gives the number 0.00000583.  


 

Other Examples


1.122 × 10-7 = 0.0000001122

6 x 10-8 = 0.00000006

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