Keystones — Bedrock
Five GCSE retrieval questions · 20 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 99
Answer: 33 + 99 = 132 -
2. Algebra Substitution
If x = 5, find the value of 4x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 20, 11, 9, 4
Answer: 11