Keystones — Bedrock
Five GCSE retrieval questions · 26 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 26
Answer: 12 + 26 = 38 -
2. Algebra Substitution
If x = 9, find the value of 8x + 8
Answer: 80 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:10
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 15, 10, 20
Answer: 15