Keystones — Cornerstone
Five GCSE retrieval questions · 9 October 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 92 + ? = 200
Answer: 108 -
2. Algebra
Solve: 8x = 88
Answer: x = 11 -
3. Geometry
Opposite = 18cm, adjacent = 10cm. Calculate the angle
Answer: 60.9° -
4. Ratio
Simplify: 20:20:16
Answer: 5:5:4 -
5. Statistics
Find the mean of: 4, 6, 2, 11, 5
Answer: 5.6