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: [-155, 52, 481, 664, -641, 270, 392, -914, 141, 769, 138, 479, -750]

[-160, 50, 480, 660, -640, 270, 390, -910, 140, 770, 140, 480, -750]