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: [-39, 289, 275, -528, -161, -653, -398, 555, -40, 914, -934, 836, -98, 600]

[-40, 290, 280, -530, -160, -650, -400, 560, -40, 910, -930, 840, -100, 600]