Keystones — Bedrock
Five GCSE retrieval questions · 16 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 42
Answer: 99 + 42 = 141 -
2. Algebra Substitution
If x = 9, find the value of 8x + 4
Answer: 76 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:28
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 14, 9, 16, 9
Answer: 12