Keystones — Lintel
Five GCSE retrieval questions · 6 June 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 236, 273, and 93
Answer: 602 -
2. Algebra
Factorise: 6x² + 9x
Answer: 3x(2x + 3) -
3. Geometry
Find c if a = 10cm and b = 25cm in a right triangle
Answer: 26.9cm -
4. Ratio
Find 76% of 290
Answer: 220.4 -
5. Statistics
Calculate the mean of: 26, 11, 15, 46, 27, 26
Answer: 25.2