Keystones — Bedrock
Five GCSE retrieval questions · 17 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 29
Answer: 19 + 29 = 48 -
2. Algebra Substitution
If x = 3, find the value of 7x + 12
Answer: 33 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 21, 19, 3, 20, 7
Answer: 14