Keystones — Bedrock
Five GCSE retrieval questions · 9 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 60 + 20
Answer: 60 + 20 = 80 -
2. Algebra Substitution
If x = 8, find the value of 8x + 9
Answer: 73 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:4
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 6, 13, 6, 15
Answer: 10