Keystones — Bedrock
Five GCSE retrieval questions · 11 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 10
Answer: 19 + 10 = 29 -
2. Algebra Substitution
If x = 3, find the value of 3x + 3
Answer: 12 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:10
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 3, 8, 10
Answer: 7