Keystones — Bedrock
Five GCSE retrieval questions · 11 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 29
Answer: 25 + 29 = 54 -
2. Algebra Substitution
If x = 4, find the value of 2x + 4
Answer: 12 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:10
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 21, 5, 8, 6
Answer: 10