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: [-307, 588, -756, -648, 951, 401, -871, 849, -118, 842, -775, 217, 768, -971]

[-310, 590, -760, -650, 950, 400, -870, 850, -120, 840, -780, 220, 770, -970]