Keystones — Capstone
Five GCSE retrieval questions · 29 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄3 + 5⁄6 + 4⁄5
Answer: 23⁄10 -
2. Algebra
Solve: x⁄7 = 5.7142857142857
Answer: x = 40 -
3. Geometry
Adjacent = 29cm, hypotenuse = 38cm. Find the angle
Answer: 40.3° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 33. If 4 of them are 40, 33, 42, 42, what is the missing number?
Answer: 8