Keystones — Bedrock
Five GCSE retrieval questions · 17 September 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 63
Answer: 70 + 63 = 133 -
2. Algebra Substitution
If x = 6, find the value of 4x + 3
Answer: 27 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:9
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 19, 20, 2, 19
Answer: 15