Keystones — Bedrock
Five GCSE retrieval questions · 27 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 86
Answer: 81 + 86 = 167 -
2. Algebra Substitution
If x = 4, find the value of 7x + 5
Answer: 33 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:35
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 6, 16, 11
Answer: 11