Keystones — Bedrock
Five GCSE retrieval questions · 14 December 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 40 + 38
Answer: 40 + 38 = 78 -
2. Algebra
Factorise: 15x + 25
Answer: 5(3x + 5) -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 40:25
Answer: 8:5 -
5. Statistics
What is the probability of rolling a 5 on a fair die?
Answer: 1⁄6