Keystones — Bedrock
Five GCSE retrieval questions · 18 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 97 + 21
Answer: 97 + 21 = 118 -
2. Algebra Substitution
If x = 7, find the value of 7x + 10
Answer: 59 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:10
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 17, 11, 23, 9
Answer: 15