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: [-549, 327, -647, 675, 283, 597, 864, -250, -618, 293, 453, -837]

[-550, 330, -650, 680, 280, 600, 860, -250, -620, 290, 450, -840]