Keystones — Cornerstone
Five GCSE retrieval questions · 11 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 844 + 713
Answer: 844 + 713 = 1557 -
2. Algebra
Factorise: 15x + 24
Answer: 3(5x + 8) -
3. Geometry
Opposite = 13cm, adjacent = 16cm. Calculate the angle
Answer: 39.1° -
4. Ratio
Simplify the ratio 8:32
Answer: 1:4 -
5. Statistics
Find the mean of: 3, 18, 6, 3, 17
Answer: 9.4