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: [279, -960, -337, 396, -990, 233, -149, 901, -971, 298, -896, 86, 125, -783]

[280, -960, -340, 400, -990, 230, -150, 900, -970, 300, -900, 90, 120, -780]