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: [-21, 121, -783, 742, -479, 173, 565, -171, -63, -206]

[-20, 120, -780, 740, -480, 170, 560, -170, -60, -210]