Keystones — Bedrock
Five GCSE retrieval questions · 20 June 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 77
Answer: 85 + 77 = 162 -
2. Algebra Substitution
If x = 9, find the value of 8x + 5
Answer: 77 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 3, 15, 15
Answer: 13