Keystones — Cornerstone
Five GCSE retrieval questions · 13 December 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄5 + 2⁄3
Answer: 19⁄15 -
2. Algebra Two-step equations
Solve: 2x + 9 = 17
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio Sharing in a ratio
Share 80 in the ratio 1:3
Answer: 20 and 60 -
5. Statistics Mean
Find the mean of: 5, 14, 6
Answer: 8.3333333333333