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: [-409, 214, 961, 398, -554, 384, 391, -246, 743, 510, 179, 447]

[-410, 210, 960, 400, -550, 380, 390, -250, 740, 510, 180, 450]