Keystones — Capstone
Five GCSE retrieval questions · 7 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 3⁄4 + 3⁄5 + 5⁄6
Answer: 131⁄60 -
2. Algebra
Solve: x⁄5 = 2.4
Answer: x = 12 -
3. Geometry
Adjacent = 18cm, hypotenuse = 36cm. Find the angle
Answer: 60° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 31. If 3 of them are 22, 23, 39, what is the missing number?
Answer: 40