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: [774, -553, 630, 115, -533, 287, 78, 854, -103, -559, 600, -87, 706, -346, 87]

[770, -550, 630, 120, -530, 290, 80, 850, -100, -560, 600, -90, 710, -350, 90]