Keystones — Capstone
Five GCSE retrieval questions · 27 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 992 + 742
Answer: 1734 -
2. Algebra
Simplify: 18x²y³ ÷ 3xy²
Answer: 6xy -
3. Geometry
Find the distance between (1, -6) and (12, 7)
Answer: 17.03 -
4. Ratio
Calculate 20.5% of 840
Answer: 172.2 -
5. Statistics
The mean of 5 numbers is 20. If 4 of them are 20, 40, 29, 30, what is the missing number?
Answer: -19