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: [-216, 169, -637, 347, 402, -352, 220, -560, 520, 281, -798, -260, 722, -390, 949]

[-220, 170, -640, 350, 400, -350, 220, -560, 520, 280, -800, -260, 720, -390, 950]