Keystones — Bedrock
Five GCSE retrieval questions · 13 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 44
Answer: 42 + 44 = 86 -
2. Algebra Substitution
If x = 7, find the value of 8x + 10
Answer: 66 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:15
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 15, 3, 3
Answer: 7