Keystones — Cornerstone
Five GCSE retrieval questions · 21 December 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄11 + 6⁄11
Answer: 10⁄11 -
2. Algebra Two-step equations
Solve: 6x + 5 = 29
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 40cm
Answer: 41cm -
4. Ratio Sharing in a ratio
Share 66 in the ratio 1:2
Answer: 22 and 44 -
5. Statistics Mean
Find the mean of: 6, 14, 16
Answer: 12