Keystones — Cornerstone
Five GCSE retrieval questions · 1 March 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄8 + 3⁄6
Answer: 3⁄4 -
2. Algebra Two-step equations
Solve: 7x - 8 = 55
Answer: x = 9 -
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 45 in the ratio 4:1
Answer: 36 and 9 -
5. Statistics Mean
Find the mean of: 3, 8, 10
Answer: 7