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: [-798, 492, 191, -57, 409, -658, -186, 702, -16, 896, 422, 379, -842]

[-800, 490, 190, -60, 410, -660, -190, 700, -20, 900, 420, 380, -840]