Keystones — Cornerstone
Five GCSE retrieval questions · 6 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 23 + 88
Answer: 23 + 88 = 111 -
2. Algebra
For y = x³ + 13, calculate y when x = 4
Answer: y = 77 -
3. Geometry
Opposite = 9cm, adjacent = 20cm. Calculate the angle
Answer: 24.2° -
4. Ratio
Simplify: 18:12:15
Answer: 6:4:5 -
5. Statistics
Calculate the mean of: 12, 9, 47, 42, 6, 36, 24, 44
Answer: 27.5