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: [841, 241, 274, 2, 983, 992, -109, 173, 433, 803, -454, 518]

[840, 240, 270, 0, 980, 990, -110, 170, 430, 800, -450, 520]