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: [-415, -371, -380, -257, 227, 819, 230, 68, -410, -165, 988, -366, 848, 699, -302]

[-420, -370, -380, -260, 230, 820, 230, 70, -410, -160, 990, -370, 850, 700, -300]