Keystones — Bedrock
Five GCSE retrieval questions · 21 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 18
Answer: 39 + 18 = 57 -
2. Algebra Substitution
If x = 5, find the value of 7x + 5
Answer: 40 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 19, 19, 9, 13
Answer: 15