Keystones — Cornerstone
Five GCSE retrieval questions · 24 May 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄6 + 1⁄3
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 6x + 11 = 65
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 40cm
Answer: 41cm -
4. Ratio Sharing in a ratio
Share 140 in the ratio 3:4
Answer: 60 and 80 -
5. Statistics Mean
Find the mean of: 7, 12, 25, 8
Answer: 13