Keystones — Cornerstone
Five GCSE retrieval questions · 29 August 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 51 + ? = 170
Answer: 119 -
2. Algebra
Solve: x + 5 = 18
Answer: x = 13 -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Simplify the ratio 10:8
Answer: 5:4 -
5. Statistics
Calculate the range of: 82, 40, 47, 83, 43, 49
Answer: 43