Keystones — Lintel
Five GCSE retrieval questions · 26 October 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Factorise: 8x² + 6x
Answer: 2x(4x + 3) -
3. Geometry
Opposite = 17cm, adjacent = 12cm. Calculate the angle
Answer: 54.8° -
4. Ratio
Calculate 40.9% of 665
Answer: 271.99 -
5. Statistics
Calculate the mean of: 27, 21, 23, 46, 25, 38, 29, 23
Answer: 29