Keystones — Bedrock
Five GCSE retrieval questions · 4 November 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 88 + 25
Answer: 88 + 25 = 113 -
2. Algebra Substitution
If x = 10, find the value of 8x + 6
Answer: 86 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 19, 9, 15, 15, 2
Answer: 12