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: [475, 171, -138, 605, -447, -92, 188, 421, 309, -569, 193, -61, -939]

[480, 170, -140, 600, -450, -90, 190, 420, 310, -570, 190, -60, -940]