Keystones — Bedrock
Five GCSE retrieval questions · 16 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 12 + 16
Answer: 12 + 16 = 28 -
2. Algebra
Factorise: 28x + 8
Answer: 4(7x + 2) -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2