Keystones — Cornerstone
Five GCSE retrieval questions · 14 May 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 83 + ? = 142
Answer: 59 -
2. Algebra
Solve: 7x = 84
Answer: x = 12 -
3. Geometry
Opposite = 18cm, adjacent = 16cm. Calculate the angle
Answer: 48.4° -
4. Ratio
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics
Find the mean of: 5, 17, 10, 5
Answer: 9.25