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: [-457, -324, 709, -403, -219, -339, 447, -605, 661, -16, -489, -324, -285, -445]

[-460, -320, 710, -400, -220, -340, 450, -600, 660, -20, -490, -320, -280, -440]