Keystones — Cornerstone
Five GCSE retrieval questions · 21 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 83 + 27
Answer: 83 + 27 = 110 -
2. Algebra
Find the next term: 17, 26, 35, 44, ...
Answer: 53 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 15cm and 9cm
Answer: 67.5cm² -
4. Ratio
Find 64% of 260
Answer: 166.4 -
5. Statistics
Find the range of: 31, 30, 21, 20, 20
Answer: 11