Keystones — Bedrock
Five GCSE retrieval questions · 20 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 68 + 94
Answer: 68 + 94 = 162 -
2. Algebra Substitution
If x = 8, find the value of 4x + 7
Answer: 39 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:14
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 19, 6, 7, 15, 3
Answer: 10