Keystones — Bedrock
Five GCSE retrieval questions · 31 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 99
Answer: 27 + 99 = 126 -
2. Algebra Substitution
If x = 8, find the value of 5x + 4
Answer: 44 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 7, 3, 18, 6, 11
Answer: 9