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: [-768, 756, 434, -755, 763, -437, -330, 93, 52, -712, -714, 794, 521]

[-770, 760, 430, -760, 760, -440, -330, 90, 50, -710, -710, 790, 520]