Keystones — Bedrock
Five GCSE retrieval questions · 19 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 39
Answer: 33 + 39 = 72 -
2. Algebra Substitution
If x = 10, find the value of 4x + 10
Answer: 50 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:25
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 3, 3, 25, 8, 16
Answer: 11