Keystones — Cornerstone
Five GCSE retrieval questions · 13 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 56 + 68
Answer: 56 + 68 = 124 -
2. Algebra
Solve: x + 11 = 20
Answer: x = 9 -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Find 77% of 351
Answer: 270.27 -
5. Statistics
Calculate the range of: 58, 100, 74, 81, 48, 76
Answer: 52