Keystones — Bedrock
Five GCSE retrieval questions · 24 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 93 + 84
Answer: 93 + 84 = 177 -
2. Algebra Substitution
If x = 5, find the value of 7x + 5
Answer: 40 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 9, 20, 20, 11
Answer: 15