Keystones — Bedrock
Five GCSE retrieval questions · 22 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 89
Answer: 90 + 89 = 179 -
2. Algebra Substitution
If x = 9, find the value of 6x + 5
Answer: 59 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 5, 2, 17
Answer: 8