Keystones — Lintel
Five GCSE retrieval questions · 28 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 504 + 611
Answer: 504 + 611 = 1115 -
2. Algebra
Solve: 8x = 120
Answer: x = 15 -
3. Geometry
Adjacent = 20cm, hypotenuse = 40cm. Find the angle
Answer: 60° -
4. Ratio
Calculate 19.4% of 930
Answer: 180.42 -
5. Statistics
Find the range of: 30, 42, 22, -22, -23
Answer: 65