Keystones — Bedrock
Five GCSE retrieval questions · 27 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 4 × 2
Answer: 21 -
2. Algebra
Factorise: 24x + 42
Answer: 6(4x + 7) -
3. Geometry
Opposite = 14cm, hypotenuse = 19.8cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2