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: [813, 920, 329, 794, 986, 747, 927, -212, 642, 782, -285, 858]

[810, 920, 330, 790, 990, 750, 930, -210, 640, 780, -280, 860]