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: [-579, 129, -577, 554, 155, -149, 621, -864, 847, -300]

[-580, 130, -580, 550, 160, -150, 620, -860, 850, -300]