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: [-660, -817, 963, 185, 428, -720, 508, 425, 656, -358, 524, -673, -31, -834]

[-660, -820, 960, 180, 430, -720, 510, 420, 660, -360, 520, -670, -30, -830]