Keystones — Cornerstone
Five GCSE retrieval questions · 16 September 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 245, 183, and 50
Answer: 478 -
2. Algebra
Simplify: 6x + 7x
Answer: 13x -
3. Geometry
Find the perimeter of a right triangle with sides 6cm, 8cm, 10cm
Answer: 24cm -
4. Ratio
Simplify: 24:16:8
Answer: 3:2:1 -
5. Statistics
Calculate the range of: 27, 32, 45, 68, 48, 66
Answer: 41