Keystones — Capstone
Five GCSE retrieval questions · 14 November 2021 · mathsvault.uk/keystones
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1. Number
0.0064
Answer: 6.4 × 10^-3 -
2. Algebra
Solve: x⁄8 = 4.375
Answer: x = 35 -
3. Geometry
Adjacent = 18cm, hypotenuse = 25cm. Find the angle
Answer: 43.9° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 32. If 4 of them are 31, 32, 48, 31, what is the missing number?
Answer: 18