KS3 Percentages
KS3
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Percentages
Percentage of an Amount (No Calculator) — KS3 Maths
A clear, step-by-step KS3 lesson on finding a percentage of an amount without a calculator. Find 10% by dividing by 10, then build up — with a bar model and the 10% plus 5% trick.
Video coming soon — read the lesson below
What is 15% of 60? You can do it in your head, no calculator. To find a percentage of an amount, start from ten percent — just divide by ten — then build up. Thirty percent is three lots of ten percent, shown here on a bar model, and five percent is half of ten percent, so fifteen percent is ten percent plus five percent. This lesson works through three examples using one reliable method.
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A free printable worksheet with 16 questions and a full worked answer key. No sign-up needed.