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: [668, -395, 213, -811, 722, -61, 854, 147, 660, 846, -737, -792, 250, 897, -333]

[670, -400, 210, -810, 720, -60, 850, 150, 660, 850, -740, -790, 250, 900, -330]