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: [-831, 214, 248, -308, -494, 461, 675, -441, -971, -320, 673, 541, 780]

[-830, 210, 250, -310, -490, 460, 680, -440, -970, -320, 670, 540, 780]