Keystones — Cornerstone
Five GCSE retrieval questions · 8 February 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 7⁄11 + 3⁄11
Answer: 10⁄11 -
2. Algebra Two-step equations
Solve: 2x - 7 = 7
Answer: x = 7 -
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 50 in the ratio 3:2
Answer: 30 and 20 -
5. Statistics Mean
Find the mean of: 13, 4, 10
Answer: 9