Keystones — Lintel
Five GCSE retrieval questions · 5 November 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Solve: x⁄2 = 9
Answer: x = 18 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 13cm and 14cm
Answer: 91cm² -
4. Ratio
Calculate 43.7% of 839
Answer: 366.64 -
5. Statistics
Calculate the mean of: 24, 45, 7, 14, 7, 38, 25, 18
Answer: 22.3