Keystones — Cornerstone
Five GCSE retrieval questions · 8 April 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 6⁄10 + 1⁄10
Answer: 7⁄10 -
2. Algebra Two-step equations
Solve: 7x - 11 = 73
Answer: x = 12 -
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 60 in the ratio 1:3
Answer: 15 and 45 -
5. Statistics Mean
Find the mean of: 11, 18, 8, 7
Answer: 11