Keystones — Bedrock
Five GCSE retrieval questions · 13 September 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 22
Answer: 39 + 22 = 61 -
2. Algebra Substitution
If x = 5, find the value of 5x + 6
Answer: 31 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 19, 21, 5
Answer: 15