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: [618, -938, -209, 623, 12, -233, 426, -676, 372, -770, 305, -256]

[620, -940, -210, 620, 10, -230, 430, -680, 370, -770, 300, -260]