Keystones — Bedrock
Five GCSE retrieval questions · 22 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: -8 + (-9)
Answer: -17 -
2. Algebra
Find the next term: 18, 22, 26, 30, ...
Answer: 34 -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
In ratio 5:2, the difference between shares is 60. What are the shares?
Answer: 100 and 40 -
5. Statistics
Find the mean of: 8, 20, 19, 16, 20
Answer: 16.6