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: [-677, 830, 682, -189, 0, 960, -976, -35, -558, 156, 843]

[-680, 830, 680, -190, 0, 960, -980, -40, -560, 160, 840]