Keystones — Bedrock
Five GCSE retrieval questions · 30 December 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 86 + 66
Answer: 86 + 66 = 152 -
2. Algebra
Factorise: 21x + 12
Answer: 3(7x + 4) -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2