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Calculator Killer 6

Algebra Level 2

$\large 100^2 - 99^2 + 98^2 - 97^2 + \cdots +2^2 - 1^2 = \, ?$

5050 10000 50 10100

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Excel in math and science

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It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

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by Zandra Vinegar

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