Keystones — Cornerstone
Five GCSE retrieval questions · 4 June 2012 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 3⁄11 + 6⁄11
Answer: 9⁄11 -
2. Algebra Two-step equations
Solve: 3x - 17 = 25
Answer: x = 14 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 12cm
Answer: 15cm -
4. Ratio Sharing in a ratio
Share 84 in the ratio 2:1
Answer: 56 and 28 -
5. Statistics Mean
Find the mean of: 13, 4, 12, 14, 12
Answer: 11