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Percentages Topic Guide

What does it mean when an item in a shop is marked at 50% off? How much life is left in your phone battery if it has 10% charge?

Percentages are a useful way of showing how much of something there is, by expressing it as parts of 100.

Teach your children about percentages using our handy topic guide!

Choose a section:
Teaching Ideas | Resources | Facts | Videos | Books | Links

Teaching Ideas

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Resources

The Percentages Pack

Percentages Facts

  • Percent comes from the Latin “per centum”, meaning “by the hundred”.
  • The percentage sign (%) developed between the 15th and 17th centuries, before that mathematicians used different ways to show it, such as “p 100” or “p cento”.
  • A percentage is a way of writing an amount, by showing the number of parts per 100.
  • Percentages can be converted into decimals and fractions.
  • A percentage is equal to a fraction with a denominator of 100, for example, 50% is the same as 50/100.

Videos

Percentages challenge: Football

This BBC Teach video demonstrates how to use percentages in a football challenge.

Running time: 9:11

Find a percentage of a number which is a multiple of 100

This is a nice clear explanation of how to find a percentage of a multiple of 100. Click on the playlist to the right for more percentage videos.

Running time: 3:06

The One with Percentages and 30

This video models two different methods of solving missing number questions involving percentages.

Running time: 5:56

Things I Wish I Learnt At School – Percentages

This short video demonstrates clearly how to use the fact that a percentage question can be reversed and will still give the same answer to solve tricky percentage problems.

Running time: 2:49

Fractions, decimals and percentages

This Decimal Dance Off demonstrates the relationship between fractions, decimals and percentages.

Running time: 5:01

Books

The Grizzly Gazette

When a vote is held to elect a mascot for Camp Grizzly, who will get the biggest percentage of the vote?

10-Minute Tests - Fractions, Decimals & Percentages

This book contains 12 bite-sized tests covering Fractions, Decimals & Percentages. It’s ideal for pupils who are working at the expected standard but want a bit of a boost in this area.

Understanding Maths: Decimals & Percentages

A comprehensive guide to decimals and percentages.

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