Keystones — Bedrock
Five GCSE retrieval questions · 14 February 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 47
Answer: 48 + 47 = 95 -
2. Algebra Substitution
If x = 2, find the value of 8x + 4
Answer: 20 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 4, 3, 5, 4, 19
Answer: 7