Question

Sum of all positive integers from 1 to 821. Please include explanation and work. I will reward the correct answer.

Answer 1

Answer:

337,431

Step-by-step explanation:

Some people might think of doing it this way: 1+2+3+4+5+6....and so on until 821. But that will take days.

So here's the best way to do this in a shorter while:

1,2,3...821

821/2(1+821) => 337,431.

Kindly mark me as brainliest.

| ABOUT ME |

I'm Fatima- a Pakistani 8th grader who loves mathematics and science. If my answers help you, then it's a pleasure!