Keystones — Capstone
Five GCSE retrieval questions · 2 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 4.57 + 19.7 + 0.588
Answer: 4.57 + 19.7 + 0.588 = 24.858 -
2. Algebra
Expand: 3(8x - 11)
Answer: 24x - 33 -
3. Geometry
Adjacent = 28cm, hypotenuse = 35cm. Find the angle
Answer: 36.9° -
4. Ratio
Calculate 43.6% of 585
Answer: 255.06 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 45, 33, 33, 30, what is the missing number?
Answer: 14