Keystones — Bedrock
Five GCSE retrieval questions · 17 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 64 + 64
Answer: 64 + 64 = 128 -
2. Algebra Substitution
If x = 5, find the value of 8x + 9
Answer: 49 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 13, 6, 13, 4
Answer: 9