Keystones — Cornerstone
Five GCSE retrieval questions · 14 June 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄6 + 4⁄8
Answer: 7⁄6 -
2. Algebra Two-step equations
Solve: 2x - 8 = 12
Answer: x = 10 -
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 44 in the ratio 3:1
Answer: 33 and 11 -
5. Statistics Mean
Calculate the mean of: 7, 30, 49, 14, 14, 27
Answer: 23.5