Keystones — Capstone
Five GCSE retrieval questions · 27 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 3⁄5 + 5⁄6 + 2⁄6
Answer: 53⁄30 -
2. Algebra
Factorise fully: 10x² + 35x
Answer: 5x(2x + 7) -
3. Geometry
Find the distance between (1, -1) and (5, 11)
Answer: 12.65 -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 35. If 4 of them are 25, 38, 26, 17, what is the missing number?
Answer: 69