Keystones — Bedrock
Five GCSE retrieval questions · 13 March 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 93
Answer: 33 + 93 = 126 -
2. Algebra Substitution
If x = 9, find the value of 3x + 12
Answer: 39 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:4
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 15, 15
Answer: 16.666666666667