Keystones — Bedrock
Five GCSE retrieval questions · 26 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 69
Answer: 39 + 69 = 108 -
2. Algebra Substitution
If x = 4, find the value of 8x + 7
Answer: 39 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 8, 8, 11
Answer: 9