Keystones — Cornerstone
Five GCSE retrieval questions · 21 April 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 30 + ? = 180
Answer: 150 -
2. Algebra
Solve: 9x + 8 = 6x + 26
Answer: x = 6 -
3. Geometry
Opposite = 8cm, adjacent = 19cm. Calculate the angle
Answer: 22.8° -
4. Ratio
Find 56% of 341
Answer: 190.96 -
5. Statistics
Calculate the mean of: 15, 27, 19, 16, 50, 34, 33
Answer: 27.7