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: [-247, -438, -864, 552, 664, 935, 914, 920, -975, 628, -266, -604, 75]

[-250, -440, -860, 550, 660, 940, 910, 920, -980, 630, -270, -600, 80]