Keystones — Cornerstone
Five GCSE retrieval questions · 30 April 2013 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄12 + 7⁄12
Answer: 11⁄12 -
2. Algebra Two-step equations
Solve: 4x - 16 = 4
Answer: x = 5 -
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 36 in the ratio 1:2
Answer: 12 and 24 -
5. Statistics Mean
Find the mean of: 18, 17, 10, 15
Answer: 15