Keystones — Cornerstone
Five GCSE retrieval questions · 21 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 77 + 98
Answer: 77 + 98 = 175 -
2. Algebra
Collect like terms: 2x + 8y + 7x + 8y
Answer: 9x + 16y -
3. Geometry
Opposite = 9cm, adjacent = 16cm. Calculate the angle
Answer: 29.4° -
4. Ratio
Calculate 25% of 89
Answer: 22.25 -
5. Statistics
Calculate the mean of: 14, 24, 22, 48, 9, 9, 26, 37
Answer: 23.6