Keystones — Bedrock
Five GCSE retrieval questions · 5 July 2024 · mathsvault.uk/keystones
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1. Number
Calculate: -9 + 10
Answer: 1 -
2. Algebra
Factorise: 15x + 6
Answer: 3(5x + 2) -
3. Geometry
Find the area of a right triangle with base 10cm and height 9cm
Answer: 45cm² -
4. Ratio
In ratio 3:2, the difference between shares is 24. What are the shares?
Answer: 72 and 48 -
5. Statistics
Find the mean of: 8, 11, 11, 19
Answer: 12.25