Keystones — Bedrock
Five GCSE retrieval questions · 21 September 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 21
Answer: 36 + 21 = 57 -
2. Algebra Substitution
If x = 3, find the value of 8x + 10
Answer: 34 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 11, 11, 11
Answer: 13