Keystones — Bedrock
Five GCSE retrieval questions · 8 December 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 79 + 30
Answer: 79 + 30 = 109 -
2. Algebra Substitution
If x = 9, find the value of 8x + 5
Answer: 77 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 10, 12, 5
Answer: 9