Keystones — Bedrock
Five GCSE retrieval questions · 20 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 20
Answer: 26 + 20 = 46 -
2. Algebra Substitution
If x = 8, find the value of 4x + 11
Answer: 43 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 2, 8, 4, 16, 5
Answer: 7