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: [-388, -105, -269, -812, -304, 153, -892, 938, 66, 401, 934, 656, 511]

[-390, -100, -270, -810, -300, 150, -890, 940, 70, 400, 930, 660, 510]