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: [-270, -717, 686, 247, 504, 364, 647, -374, -817, 381]

[-270, -720, 690, 250, 500, 360, 650, -370, -820, 380]