Keystones — Cornerstone
Five GCSE retrieval questions · 26 August 2026
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1. Number
Calculate: 977 + 230
Answer: 977 + 230 = 1207 -
2. Algebra
Solve: 8x = 96
Answer: x = 12 -
3. Geometry
Calculate perimeter: two sides are 8cm and 11cm at right angles
Answer: 32.6cm -
4. Ratio
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics
Calculate the range of: 35, 46, 71, 39, 62, 79
Answer: 44