Keystones — Bedrock
Five GCSE retrieval questions · 17 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 87
Answer: 27 + 87 = 114 -
2. Algebra Substitution
If x = 10, find the value of 6x + 12
Answer: 72 -
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: 18, 3, 14, 20, 5
Answer: 12