Keystones — Cornerstone
Five GCSE retrieval questions · 29 March 2020 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄9 + 5⁄9
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 7x - 10 = 32
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Share 85 in the ratio 2:3
Answer: 34 and 51 -
5. Statistics Mean
Find the mean of: 14, 14, 2
Answer: 10