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: [-821, 892, 574, -882, -19, -825, -644, -351, -754, -307, -732, -267]

[-820, 890, 570, -880, -20, -820, -640, -350, -750, -310, -730, -270]