Keystones — Cornerstone
Five GCSE retrieval questions · 28 March 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄12 + 8⁄12
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 5x + 11 = 36
Answer: x = 5 -
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 64 in the ratio 1:3
Answer: 16 and 48 -
5. Statistics Mean
Find the mean of: 16, 13, 4
Answer: 11