Keystones — Bedrock
Five GCSE retrieval questions · 31 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 26
Answer: 15 + 26 = 41 -
2. Algebra Substitution
If x = 3, find the value of 8x + 11
Answer: 35 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:16
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 15, 7, 20, 9, 9
Answer: 12