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: [415, -148, -463, 859, 52, -923, -322, -390, -43, -306, 987, 287, 59, 866]

[420, -150, -460, 860, 50, -920, -320, -390, -40, -310, 990, 290, 60, 870]