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: [212, -935, 191, 740, -76, -115, 993, 408, 484, -168, -685, -419, 12, -617, 21]

[210, -940, 190, 740, -80, -120, 990, 410, 480, -170, -680, -420, 10, -620, 20]