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: [-959, -2, -152, -109, 963, -76, 976, 594, 889, 671, -863, 91, 259, -317, 454]

[-960, 0, -150, -110, 960, -80, 980, 590, 890, 670, -860, 90, 260, -320, 450]