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: [-483, -543, -647, -118, -72, 493, -342, -747, -683, 497, -952, 621]

[-480, -540, -650, -120, -70, 490, -340, -750, -680, 500, -950, 620]