Keystones — Capstone
Five GCSE retrieval questions · 5 April 2021 · mathsvault.uk/keystones
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1. Number
If x2 = 16, what is x?
Answer: 4 -
2. Algebra
Solve: x⁄6 = 6.1666666666667
Answer: x = 37 -
3. Geometry
Adjacent = 26cm, hypotenuse = 45cm. Find the angle
Answer: 54.7° -
4. Ratio
Calculate 30.7% of 327
Answer: 100.39 -
5. Statistics
The mean of 6 numbers is 30. If 5 of them are 45, 41, 38, 38, 19, what is the missing number?
Answer: -1