Keystones — Bedrock
Five GCSE retrieval questions · 2 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 28
Answer: 18 + 28 = 46 -
2. Algebra Substitution
If x = 6, find the value of 2x + 3
Answer: 15 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 20, 13, 15, 12, 19
Answer: 15.8