Keystones — Capstone
Five GCSE retrieval questions · 21 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 810
Answer: 1804 -
2. Algebra
Solve: x⁄7 = 5.4285714285714
Answer: x = 38 -
3. Geometry
Adjacent = 12cm, hypotenuse = 23cm. Find the angle
Answer: 58.6° -
4. Ratio
Calculate 41.2% of 831
Answer: 342.37 -
5. Statistics
The mean of 4 numbers is 20. If 3 of them are 38, 35, 40, what is the missing number?
Answer: -33