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: [257, -914, 318, 104, -622, 151, 600, -416, -989, -424, 474, -191, -712, -131, -551]

[260, -910, 320, 100, -620, 150, 600, -420, -990, -420, 470, -190, -710, -130, -550]