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: [-605, 478, 404, 29, 562, -837, 309, 370, 692, 787, 418, 573]

[-600, 480, 400, 30, 560, -840, 310, 370, 690, 790, 420, 570]