Keystones — Bedrock
Five GCSE retrieval questions · 12 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 12
Answer: 33 + 12 = 45 -
2. Algebra Substitution
If x = 10, find the value of 3x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 15, 12, 2, 6, 5
Answer: 8