Keystones — Capstone
Five GCSE retrieval questions · 25 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 1⁄6 + 3⁄4
Answer: 17⁄12 -
2. Algebra
Simplify: 6x - 2x + 7y - 6y
Answer: 4x + y -
3. Geometry
Adjacent = 30cm, hypotenuse = 35cm. Find the angle
Answer: 31° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 26. If 4 of them are 35, 21, 32, 37, what is the missing number?
Answer: 5