Keystones — Bedrock
Five GCSE retrieval questions · 12 June 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 20
Answer: 23 + 20 = 43 -
2. Algebra Substitution
If x = 6, find the value of 4x + 9
Answer: 33 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:8
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 3, 16, 15, 14
Answer: 12