Keystones — Bedrock
Five GCSE retrieval questions · 30 July 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 92 + 20
Answer: 92 + 20 = 112 -
2. Algebra Substitution
If x = 8, find the value of 2x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 3, 7, 5
Answer: 5