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: [-635, 380, -543, 756, 253, -182, 635, -423, -119, 80, -156, 715, 883, 473, -135]

[-640, 380, -540, 760, 250, -180, 640, -420, -120, 80, -160, 720, 880, 470, -140]