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: [-824, 238, -447, -221, 317, 841, 364, -66, -117, -1, 121, -12]

[-820, 240, -450, -220, 320, 840, 360, -70, -120, 0, 120, -10]