Keystones — Bedrock
Five GCSE retrieval questions · 5 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 31
Answer: 23 + 31 = 54 -
2. Algebra Substitution
If x = 10, find the value of 3x + 6
Answer: 36 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:35
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 10, 5, 13, 18, 9
Answer: 11