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: [-160, -597, -550, -442, -203, 492, 604, 299, 989, 471, 135, -164, 468]

[-160, -600, -550, -440, -200, 490, 600, 300, 990, 470, 140, -160, 470]