Keystones — Cornerstone
Five GCSE retrieval questions · 6 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 26 + (-43)
Answer: -17 -
2. Algebra
Factorise: 15x + 10
Answer: 5(3x + 2) -
3. Geometry
Opposite = 12cm, adjacent = 12cm. Calculate the angle
Answer: 45° -
4. Ratio
Calculate 25% of 39
Answer: 9.75 -
5. Statistics
Find the range of: 31, 25, 27, 18, 29
Answer: 13