Keystones — Cornerstone
Five GCSE retrieval questions · 4 November 2022 · mathsvault.uk/keystones
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1. Number
Simplify: 24 × 25
Answer: 29 -
2. Algebra
Solve: 2x = 30
Answer: x = 15 -
3. Geometry
Calculate the distance between (5, 6) and (8, 10)
Answer: 5 -
4. Ratio
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics
Calculate the mean of: 49, 38, 22, 36, 23, 43
Answer: 35.2