Keystones — Bedrock
Five GCSE retrieval questions · 21 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 31
Answer: 99 + 31 = 130 -
2. Algebra Substitution
If x = 7, find the value of 4x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 2, 9, 8, 13
Answer: 8