Keystones — Bedrock
Five GCSE retrieval questions · 18 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 95
Answer: 21 + 95 = 116 -
2. Algebra Substitution
If x = 9, find the value of 4x + 6
Answer: 42 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:8
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 6, 2, 17, 16, 14
Answer: 11