Keystones — Bedrock
Five GCSE retrieval questions · 25 April 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 12
Answer: 10 + 12 = 22 -
2. Algebra Substitution
If x = 5, find the value of 6x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:14
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 24, 4, 12, 13, 12
Answer: 13