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: [-129, 824, 818, 396, 628, -393, -480, 235, -847, -771, 290, -129]

[-130, 820, 820, 400, 630, -390, -480, 240, -850, -770, 290, -130]