Keystones — Bedrock
Five GCSE retrieval questions · 31 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 72
Answer: 25 + 72 = 97 -
2. Algebra Substitution
If x = 8, find the value of 5x + 12
Answer: 52 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:9
Answer: 8:3 -
5. Statistics Mean
Find the mean of: 19, 20, 5, 4
Answer: 12