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: [-547, 514, -7, 98, -758, -858, 237, 617, 739, -545, 294, -664, 940, -715, -879]

[-550, 510, -10, 100, -760, -860, 240, 620, 740, -540, 290, -660, 940, -720, -880]