Keystones — Cornerstone
Five GCSE retrieval questions · 24 March 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 49 + ? = 130
Answer: 81 -
2. Algebra
Solve: x + 2 = 6
Answer: x = 4 -
3. Geometry
Calculate the area of a circle with diameter 15cm
Answer: 176.71cm² -
4. Ratio
Calculate 25% of 76
Answer: 19 -
5. Statistics
Find the range of: 42, 15, 35, 16, 23
Answer: 27