Keystones — Cornerstone
Five GCSE retrieval questions · 16 June 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 55 + ? = 180
Answer: 125 -
2. Algebra
Simplify: 4x + 4x
Answer: 8x -
3. Geometry
Find the area of a right triangle with base 12cm and height 5cm
Answer: 30cm² -
4. Ratio
Simplify: 16:20:16
Answer: 4:5:4 -
5. Statistics
Calculate the mean of: 10, 30, 48, 44, 50, 9, 46, 35
Answer: 34