Keystones — Bedrock
Five GCSE retrieval questions · 15 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 64
Answer: 81 + 64 = 145 -
2. Algebra Substitution
If x = 6, find the value of 7x + 11
Answer: 53 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:35
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 18, 10, 17
Answer: 15