Keystones — Bedrock
Five GCSE retrieval questions · 5 December 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 48
Answer: 31 + 48 = 79 -
2. Algebra Substitution
If x = 8, find the value of 4x + 5
Answer: 37 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:32
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 20, 9, 5
Answer: 11.333333333333