Keystones — Capstone
Five GCSE retrieval questions · 7 June 2024 · mathsvault.uk/keystones
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1. Number
Find the missing number: 8.94 + □ = 10.16
Answer: □ = 1.22 -
2. Algebra
Factorise fully: 8x² + 6x
Answer: 2x(4x + 3) -
3. Geometry
Adjacent = 20cm, hypotenuse = 33cm. Find the angle
Answer: 52.7° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 36. If 3 of them are 47, 38, 20, what is the missing number?
Answer: 39