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: [57, -771, 2, 717, 166, -389, 704, -859, -502, 80]

[60, -770, 0, 720, 170, -390, 700, -860, -500, 80]