Keystones — Cornerstone
Five GCSE retrieval questions · 17 June 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 70 + 80
Answer: 70 + 80 = 150 -
2. Algebra
Collect like terms: 7x + 8y + 7x + 4y
Answer: 14x + 12y -
3. Geometry
Calculate the hypotenuse when a = 9cm and b = 14cm
Answer: 16.64cm -
4. Ratio
Simplify: 24:8:12
Answer: 6:2:3 -
5. Statistics
Find the mean of: 4, 16, 18
Answer: 12.666666666667