Keystones — Bedrock
Five GCSE retrieval questions · 12 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 87 + 41
Answer: 87 + 41 = 128 -
2. Algebra Substitution
If x = 9, find the value of 2x + 7
Answer: 25 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 8, 8, 5
Answer: 7