Keystones — Cornerstone
Five GCSE retrieval questions · 9 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 30 + 82
Answer: 30 + 82 = 112 -
2. Algebra
Solve: x + 7 = 27
Answer: x = 20 -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 25% of 181
Answer: 45.25 -
5. Statistics
Find the mean of: 9, 6, 12, 16, 15
Answer: 11.6