Percent and fractions: Percentages
Percentage is way of representing an amount of something, so 50% equals a half. Percentages can have values of between 0% and 100%.
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- A one-minute video designed to illustrate purpose and context of the topic with particular examples
- May be used to introduce the topic in class and stimulate discussion around the examples shown
Percentages that add up to 100
Summary of how percentage parts always add up to 100, with example questions and answers.
Finding percentage parts: fractions and percentages
How to change a percentage into a faction - the fraction method.
The fraction method
Summary of how to turn a percentage into a fraction - the fraction method - with examples.
How to find a percentage increase by adding to the original amount, with examples.
How to find a percentage decrease by subtracting from the original amount, with examples.
The decimal method
Summary of how to find a percentage using decimals - the decimal method - with examples.
Shortcuts using decimals
Summary of how decimals can be used on a calculator as shortcuts to finding percentages.
Using a calculator to find percentages 2
How to use a calculator to work out percentage increases and decreases - method 1
Matching up fractions and percentages
Exercise in matching examples of fractions to equivalent percentages.
Calculator questions 1
Exercise in finding percentages of a whole figure using a calculator (worksheet 1).
Sale time: filling in the blanks
Exercise in working out new prices of items in a sale as a percentage of the original price.
Finding ten percent
Exercise in working out the close of ten percent service charge from menu prices.
Finding percentage parts: amounts of money
Exercise in finding percentages as part of a total amout of money.
Calculator questions 2
Exercise in finding percentages of a whole figure using a calculator (worksheet 2).
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