Keystones — Cornerstone
Five GCSE retrieval questions · 4 February 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 74 + 20
Answer: 74 + 20 = 94 -
2. Algebra
Collect like terms: 6x + 5y + 3x + 3y
Answer: 9x + 8y -
3. Geometry
Opposite = 19cm, adjacent = 17cm. Calculate the angle
Answer: 48.2° -
4. Ratio
Simplify: 12:8:4
Answer: 3:2:1 -
5. Statistics
Calculate the mean of: 43, 41, 36, 34, 5, 41, 20, 37
Answer: 32.1