Keystones — Bedrock
Five GCSE retrieval questions · 19 December 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 47
Answer: 31 + 47 = 78 -
2. Algebra Substitution
If x = 10, find the value of 8x + 12
Answer: 92 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:24
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 14, 3, 7, 12
Answer: 9