Keystones — Bedrock
Five GCSE retrieval questions · 20 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 83 + 29
Answer: 83 + 29 = 112 -
2. Algebra Substitution
If x = 2, find the value of 8x + 11
Answer: 27 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:28
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 13, 7, 24, 9, 17
Answer: 14