Keystones — Bedrock
Five GCSE retrieval questions · 6 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 77
Answer: 77 + 77 = 154 -
2. Algebra Substitution
If x = 9, find the value of 8x + 3
Answer: 75 -
3. Geometry Converting lengths
Convert 32cm to mm
Answer: 320mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 11, 6, 7, 16
Answer: 10