Keystones — Cornerstone
Five GCSE retrieval questions · 26 March 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄8 + 2⁄4
Answer: 5⁄8 -
2. Algebra Two-step equations
Solve: 7x - 13 = 92
Answer: x = 15 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Divide 176 in the ratio 1:4:3
Answer: 22, 88 and 66 -
5. Statistics Mean
Find the mean of: 6, 5, 19
Answer: 10