Keystones — Cornerstone
Five GCSE retrieval questions · 6 November 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 68 + ? = 184
Answer: 116 -
2. Algebra
Solve: x + 5 = 22
Answer: x = 17 -
3. Geometry
Find the area of a circle with radius 6cm
Answer: 113.cm² -
4. Ratio
Find 18% of 107
Answer: 19.26 -
5. Statistics
Calculate the mean of: 15, 24, 35, 23, 39, 45
Answer: 30.2