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: [-115, 336, 323, -837, 181, -183, 2, -499, 771, -948, 953, -76, 40, -336, 899]

[-120, 340, 320, -840, 180, -180, 0, -500, 770, -950, 950, -80, 40, -340, 900]