Keystones — Bedrock
Five GCSE retrieval questions · 16 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 56 + 96
Answer: 56 + 96 = 152 -
2. Algebra Substitution
If x = 5, find the value of 3x + 10
Answer: 25 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 18, 18, 5, 19
Answer: 15