Keystones — Bedrock
Five GCSE retrieval questions · 31 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 21 + 22
Answer: 21 + 22 = 43 -
2. Algebra
Simplify: 6x + 6x
Answer: 12x -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
In ratio 3:1, the difference between shares is 58. What are the shares?
Answer: 87 and 29 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2