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: [-310, 76, -827, -649, -53, -820, -52, 855, 117, -236]

[-310, 80, -830, -650, -50, -820, -50, 860, 120, -240]