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: [-836, -504, 467, 896, 988, 227, -16, -86, 648, -831, 437, 965]

[-840, -500, 470, 900, 990, 230, -20, -90, 650, -830, 440, 960]