Keystones — Bedrock
Five GCSE retrieval questions · 8 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 27
Answer: 32 + 27 = 59 -
2. Algebra Substitution
If x = 10, find the value of 7x + 9
Answer: 79 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 18, 18, 10, 18, 11
Answer: 15