Keystones — Capstone
Five GCSE retrieval questions · 12 February 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 993 + 831
Answer: 1824 -
2. Algebra
Solve: x⁄7 = 5.7142857142857
Answer: x = 40 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 40. If 4 of them are 38, 40, 32, 34, what is the missing number?
Answer: 56