Keystones — Bedrock
Five GCSE retrieval questions · 17 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 95 + 33
Answer: 95 + 33 = 128 -
2. Algebra Substitution
If x = 6, find the value of 8x + 11
Answer: 59 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 9, 12, 7, 9, 8
Answer: 9