Keystones — Cornerstone
Five GCSE retrieval questions · 23 August 2015 · 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: 2x - 5 = 7
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Share 105 in the ratio 4:3
Answer: 60 and 45 -
5. Statistics Mean
Find the mean of: 18, 11, 7, 16
Answer: 13