Keystones — Bedrock
Five GCSE retrieval questions · 7 May 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 86 + 71
Answer: 86 + 71 = 157 -
2. Algebra Substitution
If x = 3, find the value of 2x + 3
Answer: 9 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 19, 6, 11
Answer: 13