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-99

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Colten Gottlieb

Lvl 10
3y ago
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Wiki User

13y ago

(1 + 100) x 100/2 = 5050. Sum of numbers 1 to n is (n/2) x (n + 1)

basically, you get 5050.

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Q: What is the answer when you add all the numbers 1-100?
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