Keystones — Cornerstone
Five GCSE retrieval questions · 24 April 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 10⁄12 + 1⁄12
Answer: 11⁄12 -
2. Algebra Two-step equations
Solve: 3x - 8 = 19
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 16cm
Answer: 20cm -
4. Ratio Sharing in a ratio
Divide 147 in the ratio 1:3:3
Answer: 21, 63 and 63 -
5. Statistics Mean
Find the mean of: 10, 16, 7
Answer: 11