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: [-278, 918, -367, -185, 408, -173, -850, -115, -10, -261]

[-280, 920, -370, -180, 410, -170, -850, -120, -10, -260]