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: [-240, -828, -698, 252, -707, -183, -753, -74, 348, -898, -774, -462, -730, -302, 864]

[-240, -830, -700, 250, -710, -180, -750, -70, 350, -900, -770, -460, -730, -300, 860]