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: [-857, -627, 395, -182, 642, -435, 491, -795, -488, -175, 118, -701, 424, 651, 660]

[-860, -630, 400, -180, 640, -440, 490, -800, -490, -180, 120, -700, 420, 650, 660]