Definition: In this task you will be given a list of integers. You should round each integer to the nearest tens place. That means you should round the number to the nearest multiple of 10.
Input: [-83, -385, 496, 357, 113, 504, -400, -629, -642, -450]

[-80, -380, 500, 360, 110, 500, -400, -630, -640, -450]