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: [-254, 236, -238, -198, -622, -189, 945, -437, -422, -539, -949, -623, 147, 504]

[-250, 240, -240, -200, -620, -190, 940, -440, -420, -540, -950, -620, 150, 500]