Keystones — Bedrock
Five GCSE retrieval questions · 30 January 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 49
Answer: 15 + 49 = 64 -
2. Algebra Substitution
If x = 3, find the value of 3x + 12
Answer: 21 -
3. Geometry Converting lengths
Convert 32cm to mm
Answer: 320mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 25, 11, 5, 15
Answer: 14