Keystones — Cornerstone
Five GCSE retrieval questions · 12 December 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄10 + 3⁄10
Answer: 7⁄10 -
2. Algebra Two-step equations
Solve: 5x - 11 = 14
Answer: x = 5 -
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 35 in the ratio 4:1
Answer: 28 and 7 -
5. Statistics Mean
Find the mean of: 3, 3, 16, 8, 5
Answer: 7