Keystones — Cornerstone
Five GCSE retrieval questions · 16 May 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄8 + 6⁄8
Answer: 7⁄8 -
2. Algebra Two-step equations
Solve: 7x + 12 = 33
Answer: x = 3 -
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 126 in the ratio 3:4:2
Answer: 42, 56 and 28 -
5. Statistics Mean
Find the mean of: 4, 14, 13, 5
Answer: 9