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: [-902, -624, 439, -517, -624, 908, 744, -508, 783, 398, 699, -6, -543, -15]

[-900, -620, 440, -520, -620, 910, 740, -510, 780, 400, 700, -10, -540, -20]