Keystones — Bedrock
Five GCSE retrieval questions · 6 May 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 38
Answer: 40 + 38 = 78 -
2. Algebra Substitution
If x = 5, find the value of 7x + 5
Answer: 40 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 4, 21, 5, 18
Answer: 12