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: [478, -638, 148, -388, 566, 830, -627, -676, 728, 547, 856]

[480, -640, 150, -390, 570, 830, -630, -680, 730, 550, 860]