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: [286, 363, 10, 12, -398, -149, 981, 660, 356, 864, 800, 621, 812]

[290, 360, 10, 10, -400, -150, 980, 660, 360, 860, 800, 620, 810]