Keystones — Cornerstone
Five GCSE retrieval questions · 23 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 20 + 91
Answer: 20 + 91 = 111 -
2. Algebra
Solve: x + 7 = 27
Answer: x = 20 -
3. Geometry
Opposite = 15cm, adjacent = 10cm. Calculate the angle
Answer: 56.3° -
4. Ratio
Simplify the ratio 4:12
Answer: 1:3 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2