Percentage of an amount

A complete lesson on finding percentages of an amount using non-calculator methods, by relating them to the key percentages of 10%, 25% and 1%. See the cover image to get an idea of the intention of the lesson.

Activities included:

Starter:
A set of questions to recap on finding 50%, 25%, 75%, 10%, 5%, 20% and 1% of an amount.

Main:

• Some slides to introduce the idea of using the key percentages to find other percentages.
• A worksheet to consolidate these ideas, followed by three flowcharts in the style of the cover image, where pupils are given a starting number and work out all the percentages. The starting numbers get progressively more difficult. I use this as a non-calculator task, but it could be used with calculators too.
• An extension task where pupils work out some percentages not included in the flowcharts, by combining percentages.

Plenary:
A great discussion question, looking at four possible ways to calculate 75% of a number.

Printable worksheets and answers included.

Please review if you buy as any feedback is appreciated!