Keystones — Bedrock
Five GCSE retrieval questions · 1 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 25
Answer: 15 + 25 = 40 -
2. Algebra Substitution
If x = 5, find the value of 7x + 8
Answer: 43 -
3. Geometry Converting lengths
Convert 34cm to mm
Answer: 340mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 20, 10, 18, 3, 19
Answer: 14