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: [-844, 280, 454, 6, -506, -264, -917, -829, -153, 420, -477, 632, -374, -670, 606]

[-840, 280, 450, 10, -510, -260, -920, -830, -150, 420, -480, 630, -370, -670, 610]