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: [821, -242, 673, 424, -891, 55, 242, 764, -418, 875]

[820, -240, 670, 420, -890, 60, 240, 760, -420, 880]