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: [667, -643, -584, 444, 359, -359, -826, 460, -307, -830, -35, 175, 64, 846]

[670, -640, -580, 440, 360, -360, -830, 460, -310, -830, -40, 180, 60, 850]