  # Read Standard Form Numbers with Positive Indices

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

Example

Change 5.83 × 106 into a normal number.

We multiply 5.83 by 10 six times.

Each digit therefore moves 6 places to the left.

This gives the number 5830000.

Other Examples

1.1223392 × 105 = 112233.92

6.94 x 108 = 694000000

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