Keystones — Bedrock
Five GCSE retrieval questions · 3 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 48
Answer: 12 + 48 = 60 -
2. Algebra Substitution
If x = 2, find the value of 6x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 19, 23, 3
Answer: 15