Keystones — Bedrock
Five GCSE retrieval questions · 5 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 81 + 37
Answer: 81 + 37 = 118 -
2. Algebra
Simplify: 7x + 6x
Answer: 13x -
3. Geometry
Opposite = 9cm, hypotenuse = 10.4cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
In ratio 5:4, the difference between shares is 14. What are the shares?
Answer: 70 and 56 -
5. Statistics
Find the mean of: 9, 7, 13, 3, 17
Answer: 9.8