Keystones — Cornerstone
Five GCSE retrieval questions · 11 June 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄3 + 3⁄7
Answer: 23⁄21 -
2. Algebra Two-step equations
Solve: 7x + 4 = 60
Answer: x = 8 -
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 66 in the ratio 1:2
Answer: 22 and 44 -
5. Statistics Mean
Find the mean of: 4, 7, 4
Answer: 5