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: [250, -453, 390, -416, 183, -533, -512, 928, 857, 708, -854, 328, -651]

[250, -450, 390, -420, 180, -530, -510, 930, 860, 710, -850, 330, -650]