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: [-404, -415, 675, -940, 834, -163, 250, -458, -660, 940, 568, -36, 879, -525]

[-400, -420, 680, -940, 830, -160, 250, -460, -660, 940, 570, -40, 880, -520]