Keystones — Lintel
Five GCSE retrieval questions · 28 May 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Solve: 7x = 84
Answer: x = 12 -
3. Geometry
Opposite = 18cm, adjacent = 12cm. Calculate the angle
Answer: 56.3° -
4. Ratio
Simplify: 8:20:8
Answer: 2:5:2 -
5. Statistics
Find the range of: -15, 27, 13, -5, 47
Answer: 62