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: [-330, 95, -507, 706, 36, -755, 666, 808, 639, -731, -207, -534, -48, 286, 430]

[-330, 100, -510, 710, 40, -760, 670, 810, 640, -730, -210, -530, -50, 290, 430]