Keystones — Bedrock
Five GCSE retrieval questions · 18 June 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 47
Answer: 42 + 47 = 89 -
2. Algebra Substitution
If x = 10, find the value of 2x + 9
Answer: 29 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:20
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 16, 3, 14, 6, 4
Answer: 8.6