Keystones — Bedrock
Five GCSE retrieval questions · 22 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 42 + 43
Answer: 42 + 43 = 85 -
2. Algebra
Find the next term: 9, 15, 21, 27, ...
Answer: 33 -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 10:15
Answer: 2:3 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2