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: [804, -540, -545, -193, 154, -720, -667, 201, -128, -18, 921, 645, -886, 475, -567]

[800, -540, -540, -190, 150, -720, -670, 200, -130, -20, 920, 640, -890, 480, -570]