Keystones — Cornerstone
Five GCSE retrieval questions · 12 November 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 286 + 314
Answer: 286 + 314 = 600 -
2. Algebra
Solve: 2x = 16
Answer: x = 8 -
3. Geometry
Opposite = 5cm, hypotenuse = 10cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 180
Answer: 18 -
5. Statistics
Calculate the mean of: 5, 8, 25, 11, 18, 49
Answer: 19.3