Keystones — Capstone
Five GCSE retrieval questions · 30 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄5 + 3⁄5 + 2⁄5
Answer: 7⁄5 -
2. Algebra
Solve: x⁄7 = 2.7142857142857
Answer: x = 19 -
3. Geometry
Adjacent = 30cm, hypotenuse = 43cm. Find the angle
Answer: 45.8° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 32. If 5 of them are 28, 32, 34, 28, 19, what is the missing number?
Answer: 51