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: [-1000, 955, -358, -60, -287, 70, 43, 817, -821, 518, -258, 482]

[-1000, 960, -360, -60, -290, 70, 40, 820, -820, 520, -260, 480]