Keystones — Cornerstone
Five GCSE retrieval questions · 9 August 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 39 + 75
Answer: 39 + 75 = 114 -
2. Algebra
Solve: x + 14 = 29
Answer: x = 15 -
3. Geometry
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio
Simplify: 8:16:20
Answer: 2:4:5 -
5. Statistics
Calculate the mean of: 23, 45, 42, 43, 26, 34
Answer: 35.5