Keystones — Cornerstone
Five GCSE retrieval questions · 4 September 2013 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄6 + 3⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 3x - 10 = 17
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 7cm and 24cm
Answer: 25cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 3:2
Answer: 36 and 24 -
5. Statistics Mean
Find the mean of: 11, 20, 2
Answer: 11