Keystones — Bedrock
Five GCSE retrieval questions · 23 December 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 3.1 + 9.3
Answer: 3.1 + 9.3 = 12.4 -
2. Algebra
Find the midpoint of (4, 3) and (14, 18)
Answer: (9, 10.5) -
3. Geometry
Opposite = 9cm, hypotenuse = 10.4cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 15:25
Answer: 3:5 -
5. Statistics
Find the mean of: 15, 8, 18, 19, 14
Answer: 14.8