Keystones — Cornerstone
Five GCSE retrieval questions · 3 December 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 60 + ? = 150
Answer: 90 -
2. Algebra
Factorise: 2x² + 3x
Answer: x(2x + 3) -
3. Geometry
Opposite = 15cm, adjacent = 19cm. Calculate the angle
Answer: 38.3° -
4. Ratio
Simplify: 6:6:18
Answer: 1:1:3 -
5. Statistics
Calculate the range of: 65, 30, 69, 20, 61, 57
Answer: 49