Keystones — Cornerstone
Five GCSE retrieval questions · 15 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 550 + 741
Answer: 550 + 741 = 1291 -
2. Algebra
Solve: x + 5 = 13
Answer: x = 8 -
3. Geometry
Find the area of a circle with radius 10cm
Answer: 314.16cm² -
4. Ratio
Simplify: 12:15:12
Answer: 4:5:4 -
5. Statistics
Find the mean of: 4, 14, 12, 16, 12
Answer: 11.6