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: [-137, -721, 879, 674, -647, 447, 362, -317, -872, 902, 721, 29, 50, -205]

[-140, -720, 880, 670, -650, 450, 360, -320, -870, 900, 720, 30, 50, -200]