Keystones — Bedrock
Five GCSE retrieval questions · 4 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 86 + 34
Answer: 86 + 34 = 120 -
2. Algebra Substitution
If x = 8, find the value of 5x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 3, 10, 15, 16
Answer: 11