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: [-516, -139, -902, 20, 966, -541, -205, 554, -340, 975, 498]

[-520, -140, -900, 20, 970, -540, -200, 550, -340, 980, 500]