Keystones — Cornerstone
Five GCSE retrieval questions · 16 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 42 + 70
Answer: 42 + 70 = 112 -
2. Algebra
Expand: 2(3x + 3)
Answer: 6x + 6 -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Simplify: 12:8:20
Answer: 3:2:5 -
5. Statistics
Calculate the range of: 52, 79, 81, 94, 41, 78
Answer: 53