Keystones — Cornerstone
Five GCSE retrieval questions · 17 January 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 86 + 90
Answer: 86 + 90 = 176 -
2. Algebra
For y = x³ + 9, calculate y when x = 2
Answer: y = 17 -
3. Geometry
Opposite = 9cm, adjacent = 17cm. Calculate the angle
Answer: 27.9° -
4. Ratio
Simplify: 8:12:8
Answer: 2:3:2 -
5. Statistics
Calculate the mean of: 19, 19, 5, 17, 33, 49, 38, 34
Answer: 26.8