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: [-987, 565, -345, -389, 335, -407, -19, -506, -824, 291, -392, -889, -836]

[-990, 560, -340, -390, 340, -410, -20, -510, -820, 290, -390, -890, -840]