Keystones — Bedrock
Five GCSE retrieval questions · 22 December 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 48
Answer: 17 + 48 = 65 -
2. Algebra Substitution
If x = 6, find the value of 3x + 6
Answer: 24 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 16, 20, 16, 6, 17
Answer: 15