Keystones — Capstone
Five GCSE retrieval questions · 5 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 998 + 682
Answer: 1680 -
2. Algebra
Complete the square: x² + 5.4x
Answer: (x + 2.7)² - 7.29 -
3. Geometry
Adjacent = 26cm, hypotenuse = 32cm. Find the angle
Answer: 35.7° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 39. If 5 of them are 34, 42, 40, 26, 39, what is the missing number?
Answer: 53