Keystones — Bedrock
Five GCSE retrieval questions · 9 September 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 36
Answer: 32 + 36 = 68 -
2. Algebra Substitution
If x = 5, find the value of 5x + 12
Answer: 37 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 9, 20, 4
Answer: 11