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: [285, 255, 397, 634, 351, -943, -527, 321, -830, 972, -731, 37, 567, 507, -850]

[280, 260, 400, 630, 350, -940, -530, 320, -830, 970, -730, 40, 570, 510, -850]