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: [683, -501, 407, 3, -585, 13, 510, -838, 89, -79, -874, -588, 640]

[680, -500, 410, 0, -580, 10, 510, -840, 90, -80, -870, -590, 640]