Keystones — Bedrock
Five GCSE retrieval questions · 26 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 14
Answer: 36 + 14 = 50 -
2. Algebra Substitution
If x = 5, find the value of 2x + 10
Answer: 20 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:4
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 13, 8, 10, 19, 25
Answer: 15