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: [-823, 241, 689, 556, -926, -177, -803, 497, 400, -221, 190, 123, 196, -473]

[-820, 240, 690, 560, -930, -180, -800, 500, 400, -220, 190, 120, 200, -470]