Keystones — Cornerstone
Five GCSE retrieval questions · 8 December 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 5⁄11 + 4⁄11
Answer: 9⁄11 -
2. Algebra Two-step equations
Solve: 2x - 5 = 15
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Share 30 in the ratio 1:2
Answer: 10 and 20 -
5. Statistics Mean
Find the mean of: 5, 10, 3
Answer: 6