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: [-385, -732, 857, -840, 957, 401, 18, -39, -187, -549, 585, 467]

[-380, -730, 860, -840, 960, 400, 20, -40, -190, -550, 580, 470]