Keystones — Bedrock
Five GCSE retrieval questions · 3 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 18
Answer: 38 + 18 = 56 -
2. Algebra Substitution
If x = 8, find the value of 8x + 6
Answer: 70 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 9, 7, 18, 18
Answer: 13