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: [277, -10, 473, -474, 160, -154, 57, -966, 395, 987, 347, 548, -295]

[280, -10, 470, -470, 160, -150, 60, -970, 400, 990, 350, 550, -300]