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: [836, -620, -452, -794, 651, 723, 975, -880, -73, -842, -860, -385, -38, -717, -797]

[840, -620, -450, -790, 650, 720, 980, -880, -70, -840, -860, -380, -40, -720, -800]