Keystones — Lintel
Five GCSE retrieval questions · 2 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Factorise fully: 25x² + 20x
Answer: 5x(5x + 4) -
3. Geometry
Adjacent = 29cm, hypotenuse = 45cm. Find the angle
Answer: 49.9° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 30, 47, 41, 10, 35, 36, 6, 42
Answer: 30.9