Keystones — Cornerstone
Five GCSE retrieval questions · 18 May 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 7⁄12 + 2⁄12
Answer: 3⁄4 -
2. Algebra Two-step equations
Solve: 6x - 16 = 26
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 3:2
Answer: 60 and 40 -
5. Statistics Mean
Find the mean of: 8, 6, 15, 7
Answer: 9