Keystones — Cornerstone
Five GCSE retrieval questions · 4 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 31 + 86
Answer: 31 + 86 = 117 -
2. Algebra
Collect like terms: 7x + 7y + 5x + 7y
Answer: 12x + 14y -
3. Geometry
Find the perimeter of a right triangle with sides 3cm and 4cm
Answer: 12cm -
4. Ratio
Find 55% of 278
Answer: 152.9 -
5. Statistics
Find the mean of: 6, 3, 9, 11
Answer: 7.25