Keystones — Bedrock
Five GCSE retrieval questions · 5 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 13 + 38
Answer: 13 + 38 = 51 -
2. Algebra Substitution
If x = 4, find the value of 4x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:24
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 20, 7, 4, 8
Answer: 9.75