Keystones — Bedrock
Five GCSE retrieval questions · 2 January 2025 · mathsvault.uk/keystones
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1. Number
Round 516 to 1 significant figure
Answer: 500 -
2. Algebra
Solve: x + 9 = 14
Answer: x = 5 -
3. Geometry
Opposite = 10cm, hypotenuse = 11.5cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics
Find the mean of: 8, 2, 16, 9, 9
Answer: 8.8