Keystones — Lintel
Five GCSE retrieval questions · 27 January 2025 · mathsvault.uk/keystones
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1. Number
What is 8.9 + 9.74 + 0.95?
Answer: 8.9 + 9.74 + 0.95 = 19.59 -
2. Algebra
Solve: 4x + 8 = x - 8
Answer: x = 5.3 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 18, 42, 35, 45, 35, 37, 23, 31
Answer: 33.3