Keystones — Bedrock
Five GCSE retrieval questions · 24 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 36
Answer: 42 + 36 = 78 -
2. Algebra Substitution
If x = 6, find the value of 5x + 3
Answer: 33 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:12
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 20, 20, 2
Answer: 14