Keystones — Cornerstone
Five GCSE retrieval questions · 26 September 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄7 + 2⁄7
Answer: 3⁄7 -
2. Algebra Two-step equations
Solve: 4x - 8 = 8
Answer: x = 4 -
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 33 in the ratio 2:1
Answer: 22 and 11 -
5. Statistics Mean
Find the mean of: 3, 14, 2, 5
Answer: 6