Class 8MathematicsCubes and Cube Roots
What are Cubes?
Cube of a number = n ร n ร n = nยณ. A perfect cube is a number whose cube root is an integer. Perfect cubes up to 20ยณ: 1,8,27,64,125,216,343,512,729,1000,1331,1728,2197,2744,3375,4096,4913,5832,6859,8000. The units digit pattern: 1ยณโ1, 2ยณโ8, 3ยณโ7, 4ยณโ4, 5ยณโ5, 6โ6, 7โ3, 8โ2, 9โ9, 0โ0.
10 examples
Concept check 1
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Definition to application 2
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Formula warm-up 3
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Reasoning practice 4
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Board-style short answer 5
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Mistake correction 6
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Visual interpretation 7
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Applied word problem 8
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Revision challenge 9
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Exam recap 10
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