Keystones — Bedrock
Five GCSE retrieval questions · 4 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 66
Answer: 38 + 66 = 104 -
2. Algebra Substitution
If x = 10, find the value of 4x + 11
Answer: 51 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 15, 9, 18, 8, 5
Answer: 11