Keystones — Bedrock
Five GCSE retrieval questions · 28 February 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 51
Answer: 81 + 51 = 132 -
2. Algebra Substitution
If x = 9, find the value of 4x + 5
Answer: 41 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 3, 2, 3, 8, 9
Answer: 5