Keystones — Bedrock
Five GCSE retrieval questions · 14 June 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 21
Answer: 41 + 21 = 62 -
2. Algebra Substitution
If x = 8, find the value of 8x + 9
Answer: 73 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 17, 13, 6, 8
Answer: 12