Keystones — Cornerstone
Five GCSE retrieval questions · 19 September 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 98 + ? = 145
Answer: 47 -
2. Algebra
Simplify: 5x + 2x
Answer: 7x -
3. Geometry
Calculate the area of a circle with diameter 24cm
Answer: 452.39cm² -
4. Ratio
Simplify the ratio 35:20
Answer: 7:4 -
5. Statistics
Find the range of: 37, 17, 26, 23, 42
Answer: 25