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: [-508, -743, 434, 223, -249, -776, -233, 115, -377, -249]

[-510, -740, 430, 220, -250, -780, -230, 120, -380, -250]