Keystones — Cornerstone
Five GCSE retrieval questions · 16 November 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄6 + 1⁄5
Answer: 11⁄30 -
2. Algebra Two-step equations
Solve: 7x - 6 = 99
Answer: x = 15 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 14cm
Answer: 16.12cm -
4. Ratio Sharing in a ratio
Share 42 in the ratio 1:2
Answer: 14 and 28 -
5. Statistics Mean
Find the mean of: 20, 4, 19, 14
Answer: 14.25