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: [446, -478, 261, 624, 604, -702, 634, -563, -558, 75, -215, 789]

[450, -480, 260, 620, 600, -700, 630, -560, -560, 80, -220, 790]