Keystones — Cornerstone
Five GCSE retrieval questions · 19 December 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 62 + 76
Answer: 62 + 76 = 138 -
2. Algebra
Factorise: 5x² + 8x
Answer: x(5x + 8) -
3. Geometry
Opposite = 11cm, adjacent = 15cm. Calculate the angle
Answer: 36.3° -
4. Ratio
Simplify: 12:12:10
Answer: 6:6:5 -
5. Statistics
Calculate the mean of: 9, 14, 35, 29, 49, 40
Answer: 29.3