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: [-842, -414, -974, 793, 555, -247, 451, -900, -671, 949, -193, 595, 954, -589, -415]

[-840, -410, -970, 790, 560, -250, 450, -900, -670, 950, -190, 600, 950, -590, -420]