Keystones — Cornerstone
Five GCSE retrieval questions · 2 July 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 45 + ? = 159
Answer: 114 -
2. Algebra
Factorise: 36x + 30
Answer: 6(6x + 5) -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics
Find the range of: 37, 37, 12, 24, 18
Answer: 25