Keystones — Lintel
Five GCSE retrieval questions · 19 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 991 + 771
Answer: 1762 -
2. Algebra
Factorise: 9x² + 2x
Answer: x(9x + 2) -
3. Geometry
Adjacent = 12cm, hypotenuse = 23cm. Find the angle
Answer: 58.6° -
4. Ratio
Find 17% of 222
Answer: 37.74 -
5. Statistics
Calculate the mean of: 8, 41, 50, 42, 14, 43, 36, 17
Answer: 31.4