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: [-101, -712, 512, -144, -570, -353, 789, 567, 939, 833, 207, 555]

[-100, -710, 510, -140, -570, -350, 790, 570, 940, 830, 210, 560]