Keystones — Cornerstone
Five GCSE retrieval questions · 24 May 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄4 + 2⁄3
Answer: 17⁄12 -
2. Algebra Two-step equations
Solve: 4x + 15 = 27
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Share 140 in the ratio 3:4
Answer: 60 and 80 -
5. Statistics Mean
Find the mean of: 8, 19, 14
Answer: 13.666666666667