Keystones — Bedrock
Five GCSE retrieval questions · 16 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 11
Answer: 23 + 11 = 34 -
2. Algebra Substitution
If x = 7, find the value of 7x + 7
Answer: 56 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:8
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 9, 21, 9
Answer: 13