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: [-855, 442, 294, 765, -301, 579, -188, -569, 812, -391]

[-860, 440, 290, 760, -300, 580, -190, -570, 810, -390]