Keystones — Bedrock
Five GCSE retrieval questions · 17 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 66
Answer: 52 + 66 = 118 -
2. Algebra Substitution
If x = 3, find the value of 6x + 11
Answer: 29 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:40
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 16, 2, 5, 17
Answer: 10