Question

what is the sum of frist 20
natutal number?​

Answer 1

The natural numbers to 20 are ⤵️

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 and 20.

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Therefore, 210 is the sum of positive integers upto 20.

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For your information, The integers are start from 0.

0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 and 20.

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Hope it help you