Keystones — Cornerstone
Five GCSE retrieval questions · 8 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 30 + 98
Answer: 30 + 98 = 128 -
2. Algebra
Solve: 2x = 14
Answer: x = 7 -
3. Geometry
Opposite = 11cm, hypotenuse = 12.7cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics
Find the range of: 27, 23, 14, 18, 10
Answer: 17