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: [21, -1000, 546, 201, -672, -249, -277, -143, 766, -67]

[20, -1000, 550, 200, -670, -250, -280, -140, 770, -70]