Keystones — Bedrock
Five GCSE retrieval questions · 26 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 41
Answer: 47 + 41 = 88 -
2. Algebra Substitution
If x = 5, find the value of 2x + 12
Answer: 22 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:8
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 14, 15, 4, 3, 14
Answer: 10