Keystones — Bedrock
Five GCSE retrieval questions · 13 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 75 + 67
Answer: 75 + 67 = 142 -
2. Algebra
Solve: x + 14 = 30
Answer: x = 16 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 24:28
Answer: 6:7 -
5. Statistics
Find the mean of: 20, 17, 4
Answer: 13.666666666667