Keystones — Cornerstone
Five GCSE retrieval questions · 12 March 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 93 + 89
Answer: 93 + 89 = 182 -
2. Algebra
Simplify: 8x + 6x
Answer: 14x -
3. Geometry
Opposite = 16cm, adjacent = 11cm. Calculate the angle
Answer: 55.5° -
4. Ratio
Simplify: 8:6:4
Answer: 4:3:2 -
5. Statistics
Find the mean of: 7, 3, 19, 20
Answer: 12.25