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: [-587, -565, -789, -434, 672, 27, -123, 772, 931, -421]

[-590, -560, -790, -430, 670, 30, -120, 770, 930, -420]