Keystones — Lintel
Five GCSE retrieval questions · 16 February 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Factorise: 6x² + 3x
Answer: 3x(2x + 1) -
3. Geometry
Find perimeter: adjacent = 18cm, angle = 47°
Answer: 63.7cm -
4. Ratio
Calculate 44.7% of 538
Answer: 240.49 -
5. Statistics
Calculate the mean of: 29, 22, 33, 18, 26, 27
Answer: 25.8