What's one plus 100,

What's one plus 100,

Hello!
1 to 100
=(1+100)X100÷2
=101x100÷2
=5050
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How much is it from one to one hundred?

Gauss's Law: multiply the number of terms by 2
(1+100)*100/2=101*100/2=10100/2=5050

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