Keystones — Cornerstone
Five GCSE retrieval questions · 2 June 2025 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄8 + 2⁄4
Answer: 7⁄8 -
2. Algebra Two-step equations
Solve: 3x + 11 = 26
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 6cm
Answer: 7.81cm -
4. Ratio Sharing in a ratio
Share 63 in the ratio 4:3
Answer: 36 and 27 -
5. Statistics Mean
Find the mean of: 7, 12, 4, 14
Answer: 9.25