Keystones — Cornerstone
Five GCSE retrieval questions · 2 May 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 3⁄6 + 2⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 3x - 18 = 12
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Share 65 in the ratio 4:1
Answer: 52 and 13 -
5. Statistics Mean
Find the mean of: 4, 8, 5, 19
Answer: 9