Keystones — Capstone
Five GCSE retrieval questions · 7 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 2⁄5 + 2⁄4
Answer: 37⁄30 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Calculate 20.2% of 420
Answer: 84.84 -
5. Statistics
The mean of 5 numbers is 27. If 4 of them are 19, 37, 28, 17, what is the missing number?
Answer: 34