Keystones — Cornerstone
Five GCSE retrieval questions · 10 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 27 + (-38)
Answer: -11 -
2. Algebra
Collect like terms: 2x + 7y + 5x + 5y
Answer: 7x + 12y -
3. Geometry
Opposite = 13cm, adjacent = 17cm. Calculate the angle
Answer: 37.4° -
4. Ratio
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics
Calculate the mean of: 33, 20, 22, 16, 29, 45
Answer: 27.5