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: [539, -901, -647, -783, 418, -10, -460, 523, 87, -309, -798, 941, -411, -855, -306]

[540, -900, -650, -780, 420, -10, -460, 520, 90, -310, -800, 940, -410, -860, -310]