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: [-259, 866, 804, 776, -238, 973, 640, 987, 97, -505, 793, 382]

[-260, 870, 800, 780, -240, 970, 640, 990, 100, -500, 790, 380]