Keystones — Bedrock
Five GCSE retrieval questions · 13 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 36
Answer: 12 + 36 = 48 -
2. Algebra Substitution
If x = 9, find the value of 3x + 11
Answer: 38 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:16
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 11, 7, 10, 8
Answer: 9