Keystones — Bedrock
Five GCSE retrieval questions · 8 September 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 22
Answer: 25 + 22 = 47 -
2. Algebra Substitution
If x = 8, find the value of 2x + 10
Answer: 26 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 3, 25, 17, 8, 2
Answer: 11