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: [-989, -335, 632, -331, 720, 526, 994, -923, -920, 169, -634, 536, -93, 523, 475]

[-990, -340, 630, -330, 720, 530, 990, -920, -920, 170, -630, 540, -90, 520, 480]