Keystones — Cornerstone
Five GCSE retrieval questions · 21 June 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 8⁄11 + 2⁄11
Answer: 10⁄11 -
2. Algebra Two-step equations
Solve: 2x - 16 = -6
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio Sharing in a ratio
Share 35 in the ratio 3:4
Answer: 15 and 20 -
5. Statistics Mean
Find the mean of: 17, 11, 17, 3
Answer: 12