Keystones — Cornerstone
Five GCSE retrieval questions · 20 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 554 + 330
Answer: 554 + 330 = 884 -
2. Algebra
Solve: x + 9 = 22
Answer: x = 13 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics
Calculate the range of: 41, 63, 49, 57, 20, 20
Answer: 43