Keystones — Capstone
Five GCSE retrieval questions · 21 December 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 1⁄4 + 1⁄5
Answer: 19⁄20 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 18cm, hypotenuse = 37cm. Find the angle
Answer: 60.9° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 27. If 4 of them are 22, 28, 17, 45, what is the missing number?
Answer: 23