Keystones — Cornerstone
Five GCSE retrieval questions · 5 January 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 53 + ? = 123
Answer: 70 -
2. Algebra
Simplify: 8x + 4x
Answer: 12x -
3. Geometry
Opposite = 10cm, adjacent = 12cm. Calculate the angle
Answer: 39.8° -
4. Ratio
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics
Find the mean of: 16, 19, 12, 4
Answer: 12.75