Keystones — Bedrock
Five GCSE retrieval questions · 24 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 35
Answer: 45 + 35 = 80 -
2. Algebra Substitution
If x = 5, find the value of 5x + 4
Answer: 29 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:8
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 15, 19, 13, 15, 20
Answer: 16.4