Keystones — Lintel
Five GCSE retrieval questions · 28 April 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 144. What are the numbers?
Answer: 47, 48, and 49 -
2. Algebra
Factorise: 2x² + 9x
Answer: x(2x + 9) -
3. Geometry
Opposite = 13cm, adjacent = 15cm. Calculate the angle
Answer: 40.9° -
4. Ratio
Calculate 38.9% of 886
Answer: 344.65 -
5. Statistics
Find the range of: -18, -19, 1, 19, 40
Answer: 59