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: [72, -525, 198, 146, -445, -155, 266, 194, 73, -131, 821]

[70, -520, 200, 150, -440, -160, 270, 190, 70, -130, 820]