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: [-607, 715, 789, 53, -155, 657, -858, 428, -800, -210, 580, 105, 297]

[-610, 720, 790, 50, -160, 660, -860, 430, -800, -210, 580, 100, 300]