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: [847, 587, 351, 941, 135, -253, 18, -353, 247, 187, -807]

[850, 590, 350, 940, 140, -250, 20, -350, 250, 190, -810]