Keystones — Lintel
Five GCSE retrieval questions · 31 March 2026 · mathsvault.uk/keystones
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1. Number
The temperature is -13°C. It rises by 20°C. What is the new temperature?
Answer: 7°C -
2. Algebra
Solve: 4x = 40
Answer: x = 10 -
3. Geometry
Calculate the area of a circle with diameter 12cm
Answer: 113.cm² -
4. Ratio
Find 75% of 212
Answer: 159 -
5. Statistics
Find the range of: 25, 0, 20, 28, -12
Answer: 40