Keystones — Bedrock
Five GCSE retrieval questions · 27 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 72
Answer: 40 + 72 = 112 -
2. Algebra Substitution
If x = 2, find the value of 8x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 15, 13, 11
Answer: 13