Keystones — Cornerstone
Five GCSE retrieval questions · 20 November 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 48 + ? = 134
Answer: 86 -
2. Algebra
Solve: 6x = 66
Answer: x = 11 -
3. Geometry
Opposite = 15cm, adjacent = 11cm. Calculate the angle
Answer: 53.7° -
4. Ratio
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics
Find the mean of: 4, 12, 11, 10, 6
Answer: 8.6