Keystones — Cornerstone
Five GCSE retrieval questions · 14 November 2011 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄6 + 1⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 8x - 12 = 28
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Share 119 in the ratio 4:3
Answer: 68 and 51 -
5. Statistics Mean
Find the mean of: 8, 7, 6, 7, 7
Answer: 7