Keystones — Bedrock
Five GCSE retrieval questions · 4 December 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 21
Answer: 17 + 21 = 38 -
2. Algebra Substitution
If x = 8, find the value of 2x + 10
Answer: 26 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 14, 2, 15, 25
Answer: 14