Keystones — Capstone
Five GCSE retrieval questions · 9 May 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 1⁄3 + 5⁄6
Answer: 3⁄2 -
2. Algebra
Solve: x⁄4 = 9.25
Answer: x = 37 -
3. Geometry
Adjacent = 28cm, hypotenuse = 42cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 24. If 4 of them are 46, 39, 37, 49, what is the missing number?
Answer: -51