Keystones — Bedrock
Five GCSE retrieval questions · 15 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 58
Answer: 81 + 58 = 139 -
2. Algebra Substitution
If x = 3, find the value of 2x + 9
Answer: 15 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:8
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 18, 2, 4
Answer: 8