Keystones — Cornerstone
Five GCSE retrieval questions · 14 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 63 + 89
Answer: 63 + 89 = 152 -
2. Algebra
Find the next term: 30, 36, 42, 48, ...
Answer: 54 -
3. Geometry
Calculate the area of a circle with diameter 11cm
Answer: 95.03cm² -
4. Ratio
Find 35% of 440
Answer: 154 -
5. Statistics
A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄3