Keystones — Cornerstone
Five GCSE retrieval questions · 18 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 102 + 965
Answer: 102 + 965 = 1067 -
2. Algebra
Solve: x + 5 = 24
Answer: x = 19 -
3. Geometry
Opposite = 15cm, adjacent = 14cm. Calculate the angle
Answer: 47° -
4. Ratio
Simplify the ratio 32:24
Answer: 4:3 -
5. Statistics
Find the mean of: 20, 17, 14, 19, 15
Answer: 17