Keystones — Cornerstone
Five GCSE retrieval questions · 7 August 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 97 + ? = 192
Answer: 95 -
2. Algebra
Solve: 9x = 126
Answer: x = 14 -
3. Geometry
Opposite = 10cm, adjacent = 14cm. Calculate the angle
Answer: 35.5° -
4. Ratio
Simplify: 15:9:6
Answer: 5:3:2 -
5. Statistics
Find the mean of: 11, 18, 13
Answer: 14