Keystones — Bedrock
Five GCSE retrieval questions · 22 January 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 67 + 53
Answer: 67 + 53 = 120 -
2. Algebra Substitution
If x = 5, find the value of 4x + 9
Answer: 29 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:40
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 17, 16, 8, 5, 14
Answer: 12