Keystones — Bedrock
Five GCSE retrieval questions · 22 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 89
Answer: 49 + 89 = 138 -
2. Algebra Substitution
If x = 3, find the value of 4x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 3, 19, 17
Answer: 13