Keystones — Bedrock
Five GCSE retrieval questions · 2 December 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 3 + (-1)
Answer: 2 -
2. Algebra
Factorise: 32x + 28
Answer: 4(8x + 7) -
3. Geometry
Find the area of a right triangle with base 8cm and height 9cm
Answer: 36cm² -
4. Ratio
Simplify the ratio 8:12
Answer: 2:3 -
5. Statistics
Find the mean of: 17, 15, 4, 10, 15
Answer: 12.2