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: [-23, -987, -424, -229, 928, 316, 673, 523, -292, -15, -489, -863, 690, 301, -360]

[-20, -990, -420, -230, 930, 320, 670, 520, -290, -20, -490, -860, 690, 300, -360]