Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 45
Answer: 19 + 45 = 64 -
2. Algebra Substitution
If x = 10, find the value of 7x + 10
Answer: 80 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:4
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 23, 11, 15, 12, 14
Answer: 15