Keystones — Cornerstone
Five GCSE retrieval questions · 19 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 244 + 837
Answer: 244 + 837 = 1081 -
2. Algebra
Factorise: 9x² + 5x
Answer: x(9x + 5) -
3. Geometry
Opposite = 14cm, adjacent = 16cm. Calculate the angle
Answer: 41.2° -
4. Ratio
Simplify: 20:12:8
Answer: 5:3:2 -
5. Statistics
Find the range of: 9, 7, 14, 16, 26
Answer: 19