Keystones — Capstone
Five GCSE retrieval questions · 25 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 992 + 562
Answer: 1554 -
2. Algebra
Factorise fully: 30x² + 35x
Answer: 5x(6x + 7) -
3. Geometry
Adjacent = 20cm, hypotenuse = 39cm. Find the angle
Answer: 59.1° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 29. If 5 of them are 21, 44, 42, 28, 31, what is the missing number?
Answer: 8