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: [-648, -24, -228, 840, -594, 674, 389, -109, 404, -7, 662, -834, 251, 1000]

[-650, -20, -230, 840, -590, 670, 390, -110, 400, -10, 660, -830, 250, 1000]