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: [584, -729, -292, 128, -7, -934, 458, -300, -122, -432, 730, 861, 235, -803, 42]

[580, -730, -290, 130, -10, -930, 460, -300, -120, -430, 730, 860, 240, -800, 40]