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: [966, -899, 786, 544, -422, 261, -70, 222, 668, 910, -320, -339, -217]

[970, -900, 790, 540, -420, 260, -70, 220, 670, 910, -320, -340, -220]