Keystones — Cornerstone
Five GCSE retrieval questions · 12 March 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄9 + 6⁄9
Answer: 8⁄9 -
2. Algebra Two-step equations
Solve: 4x + 6 = 38
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Divide 210 in the ratio 2:4:1
Answer: 60, 120 and 30 -
5. Statistics Mean
Find the mean of: 10, 17, 16
Answer: 14.333333333333