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: [669, 923, 233, -605, 400, 943, 709, -485, 212, -18, 576]

[670, 920, 230, -600, 400, 940, 710, -480, 210, -20, 580]