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What is the sum of the first 40 whole numbers?

Anonymous

∙ 11y ago

Updated: 9/24/2023

Either just go ahead and add them up, or use the formula for an arithmetic series.

Sum = 1/2 x number_of_numbers x (first_number + last_number)

= 1/2 x 40 x (1 + 40)

= 20 x 41

= 820.

Wiki User

∙ 11y ago

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