Keystones — Cornerstone
Five GCSE retrieval questions · 5 October 2022 · mathsvault.uk/keystones
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1. Number
Find the total of 195, 187, and 81
Answer: 463 -
2. Algebra
Expand: 5(2x + 2)
Answer: 10x + 10 -
3. Geometry
Find the perimeter of a right triangle with sides 3cm, 4cm, 5cm
Answer: 12cm -
4. Ratio
Simplify: 6:15:9
Answer: 2:5:3 -
5. Statistics
Find the range of: 24, 9, 9, 19, 13
Answer: 15