Keystones — Bedrock
Five GCSE retrieval questions · 26 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 28
Answer: 52 + 28 = 80 -
2. Algebra Substitution
If x = 8, find the value of 5x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 11, 18, 10, 19
Answer: 13