Keystones — Bedrock
Five GCSE retrieval questions · 4 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 34
Answer: 18 + 34 = 52 -
2. Algebra Substitution
If x = 9, find the value of 2x + 8
Answer: 26 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 15, 15, 12
Answer: 14