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: [860, -989, -448, 449, 964, 924, 659, -305, -551, -10, -668]

[860, -990, -450, 450, 960, 920, 660, -300, -550, -10, -670]