Add Every Whole Number from 1 to 100...

The Challenge Your teacher just told you to add every whole number from 1 to 100 together. Do you just start crunching the numbers? 1+2+3+4+5+6+7+8+9+ ... +97+98+99+100 = ? That's going to take so long! A Simple Case: 1 + 2 + 3 + 4 Maybe there's a pa...