Keystones — Bedrock
Five GCSE retrieval questions · 13 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 51
Answer: 47 + 51 = 98 -
2. Algebra Substitution
If x = 10, find the value of 8x + 11
Answer: 91 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 14:16
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 5, 20, 7, 10, 13
Answer: 11