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: [1, 401, 307, 831, -161, 278, -783, -907, -906, -360, 71, 147, 229, -9, 609]

[0, 400, 310, 830, -160, 280, -780, -910, -910, -360, 70, 150, 230, -10, 610]