Keystones — Bedrock
Five GCSE retrieval questions · 10 May 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 81
Answer: 28 + 81 = 109 -
2. Algebra Substitution
If x = 10, find the value of 6x + 8
Answer: 68 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 17, 6, 18, 19
Answer: 15