Keystones — Bedrock
Five GCSE retrieval questions · 3 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 52
Answer: 75 + 52 = 127 -
2. Algebra Substitution
If x = 9, find the value of 8x + 8
Answer: 80 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 5, 7, 17, 7
Answer: 9