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: [-960, -791, -220, 164, 794, 966, -501, -347, 673, 506, -919, -666, -637, -837]

[-960, -790, -220, 160, 790, 970, -500, -350, 670, 510, -920, -670, -640, -840]