Keystones — Lintel
Five GCSE retrieval questions · 9 April 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: 10x - 7 = 5x + 23
Answer: x = 6 -
3. Geometry
Adjacent = 22cm, hypotenuse = 35cm. Find the angle
Answer: 51.1° -
4. Ratio
Calculate 24.2% of 577
Answer: 139.63 -
5. Statistics
Find the range of: 1, 27, -9, -16, 8
Answer: 43