Keystones — Cornerstone
Five GCSE retrieval questions · 6 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 129 + 552
Answer: 129 + 552 = 681 -
2. Algebra
Solve: x + 3 = 14
Answer: x = 11 -
3. Geometry
Opposite = 13cm, hypotenuse = 15cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 12:16:20
Answer: 3:4:5 -
5. Statistics
Calculate the mean of: 42, 20, 37, 47, 26, 11
Answer: 30.5