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: [-211, 114, 984, -177, -122, 846, -198, -629, -313, -320, 318, 429]

[-210, 110, 980, -180, -120, 850, -200, -630, -310, -320, 320, 430]