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, 774, 565, -259, 794, 64, 563, -58, 737, 744, 44, 322, -717, -316]

[-820, 770, 560, -260, 790, 60, 560, -60, 740, 740, 40, 320, -720, -320]