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: [-637, 367, 285, -447, -931, -340, 20, 549, 784, -932, -973, -385]

[-640, 370, 280, -450, -930, -340, 20, 550, 780, -930, -970, -380]