Keystones — Capstone
Five GCSE retrieval questions · 12 January 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 1⁄6 + 2⁄3
Answer: 4⁄3 -
2. Algebra
Simplify: 7x - 3x + 10y - 8y
Answer: 4x + 2y -
3. Geometry
Adjacent = 25cm, hypotenuse = 32cm. Find the angle
Answer: 38.6° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 26. If 4 of them are 36, 47, 48, 40, what is the missing number?
Answer: -41