Keystones — Cornerstone
Five GCSE retrieval questions · 16 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 85 + 89
Answer: 85 + 89 = 174 -
2. Algebra
Simplify: 2x + 3x
Answer: 5x -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Find 57% of 411
Answer: 234.27 -
5. Statistics
Calculate the mean of: 6, 20, 40, 16, 8, 23, 14, 8
Answer: 16.9