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: [-665, 834, -72, 97, -621, -341, 465, 999, -893, -215, 132, 302, -476]

[-660, 830, -70, 100, -620, -340, 460, 1000, -890, -220, 130, 300, -480]