Keystones — Capstone
Five GCSE retrieval questions · 11 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 637
Answer: 1636 -
2. Algebra
Solve: x⁄8 = 1.75
Answer: x = 14 -
3. Geometry
Adjacent = 18cm, hypotenuse = 27cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 38. If 4 of them are 31, 50, 46, 47, what is the missing number?
Answer: 16