Keystones — Bedrock
Five GCSE retrieval questions · 14 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 39
Answer: 19 + 39 = 58 -
2. Algebra Substitution
If x = 10, find the value of 4x + 9
Answer: 49 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:8
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 11, 2, 23
Answer: 12