Keystones — Bedrock
Five GCSE retrieval questions · 1 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 88 + 89
Answer: 88 + 89 = 177 -
2. Algebra Substitution
If x = 9, find the value of 6x + 3
Answer: 57 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:40
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 14, 19, 11, 16
Answer: 15