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: [-260, 825, -499, 532, 399, -985, 734, -662, -529, 823, 985, -431, 612]

[-260, 820, -500, 530, 400, -980, 730, -660, -530, 820, 980, -430, 610]