Keystones — Bedrock
Five GCSE retrieval questions · 10 July 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 12
Answer: 30 + 12 = 42 -
2. Algebra Substitution
If x = 10, find the value of 6x + 12
Answer: 72 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 5, 19, 13, 11
Answer: 12