Keystones — Capstone
Five GCSE retrieval questions · 30 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 992 + 579
Answer: 1571 -
2. Algebra
Factorise fully: 12x² + 16x
Answer: 4x(3x + 4) -
3. Geometry
Adjacent = 23cm, hypotenuse = 43cm. Find the angle
Answer: 57.7° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 32. If 3 of them are 16, 16, 16, what is the missing number?
Answer: 80