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: [-265, 521, -49, -559, -508, -954, 533, 375, -383, -139, 442, -775]

[-260, 520, -50, -560, -510, -950, 530, 380, -380, -140, 440, -780]