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: [803, 947, 324, -203, 743, 866, -395, -532, -784, 913, -705, -251]

[800, 950, 320, -200, 740, 870, -400, -530, -780, 910, -700, -250]