Keystones — Cornerstone
Five GCSE retrieval questions · 15 July 2020 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 6⁄9 + 2⁄9
Answer: 8⁄9 -
2. Algebra Two-step equations
Solve: 7x - 7 = 84
Answer: x = 13 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 64 in the ratio 3:1
Answer: 48 and 16 -
5. Statistics Mean
Find the mean of: 8, 6, 3, 7
Answer: 6