Keystones — Capstone
Five GCSE retrieval questions · 13 October 2023 · mathsvault.uk/keystones
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1. Number
Find the missing number: 5.66 + □ = 18.04
Answer: □ = 12.38 -
2. Algebra
Simplify: 9x - 8x + 9y - 6y
Answer: x + 3y -
3. Geometry
Adjacent = 17cm, hypotenuse = 23cm. Find the angle
Answer: 42.3° -
4. Ratio
Calculate 35.9% of 373
Answer: 133.91 -
5. Statistics
The mean of 6 numbers is 38. If 5 of them are 35, 38, 26, 17, 26, what is the missing number?
Answer: 86