Keystones — Cornerstone
Five GCSE retrieval questions · 28 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄8 + 2⁄8
Answer: 3⁄8 -
2. Algebra
Solve: x + 13 = 33
Answer: x = 20 -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Simplify the ratio 12:20
Answer: 3:5 -
5. Statistics
Calculate the range of: 50, 31, 34, 45, 64, 60
Answer: 33