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: [-661, -683, -581, -786, 913, -561, -809, -296, -150, 827, -713, 49, 504, 403]

[-660, -680, -580, -790, 910, -560, -810, -300, -150, 830, -710, 50, 500, 400]