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: [9, 418, 958, 771, 847, 765, -535, 326, 92, -155, 557, -480, -440, 954, -494]

[10, 420, 960, 770, 850, 760, -540, 330, 90, -160, 560, -480, -440, 950, -490]