Keystones — Bedrock
Five GCSE retrieval questions · 12 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 51
Answer: 20 + 51 = 71 -
2. Algebra Substitution
If x = 8, find the value of 3x + 3
Answer: 27 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:4
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 9, 15, 15
Answer: 13