Keystones — Cornerstone
Five GCSE retrieval questions · 23 November 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 858 + 691
Answer: 858 + 691 = 1549 -
2. Algebra
Collect like terms: 4x + 4y + 4x + 7y
Answer: 8x + 11y -
3. Geometry
Opposite = 9cm, adjacent = 9cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify: 12:18:6
Answer: 2:3:1 -
5. Statistics
Calculate the mean of: 7, 7, 27, 9, 13, 27, 18, 47
Answer: 19.4