Keystones — Cornerstone
Five GCSE retrieval questions · 1 June 2012 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 3⁄5 + 1⁄5
Answer: 4⁄5 -
2. Algebra Two-step equations
Solve: 4x + 6 = 54
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Divide 88 in the ratio 2:3:3
Answer: 22, 33 and 33 -
5. Statistics Mean
Find the mean of: 5, 13, 3
Answer: 7