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: [-875, -227, -432, -269, 509, 290, -389, 97, 177, 438, 93, -59, -335, -828, -979]

[-880, -230, -430, -270, 510, 290, -390, 100, 180, 440, 90, -60, -340, -830, -980]