Keystones — Cornerstone
Five GCSE retrieval questions · 21 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 212 + 284
Answer: 212 + 284 = 496 -
2. Algebra
For y = x³ + 10, calculate y when x = 4
Answer: y = 74 -
3. Geometry
Opposite = 11cm, adjacent = 9cm. Calculate the angle
Answer: 50.7° -
4. Ratio
Calculate 25% of 73
Answer: 18.25 -
5. Statistics
Find the mean of: 10, 12, 14
Answer: 12