Keystones — Bedrock
Five GCSE retrieval questions · 16 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 42
Answer: 31 + 42 = 73 -
2. Algebra Substitution
If x = 6, find the value of 3x + 5
Answer: 23 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:6
Answer: 8:3 -
5. Statistics Mean
Find the mean of: 5, 25, 9
Answer: 13