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: [-30, 680, -513, 983, -276, -76, 908, -81, -528, -251, -254, 965, 480, 869]

[-30, 680, -510, 980, -280, -80, 910, -80, -530, -250, -250, 960, 480, 870]