Keystones — Capstone
Five GCSE retrieval questions · 30 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 990 + 762
Answer: 1752 -
2. Algebra
Complete the square: x² + 2.2x
Answer: (x + 1.1)² - 1.21 -
3. Geometry
Adjacent = 23cm, hypotenuse = 30cm. Find the angle
Answer: 39.9° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 37. If 4 of them are 35, 37, 38, 31, what is the missing number?
Answer: 44