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: [-13, 134, 888, 966, 571, 236, 479, -356, 65, 646, 973, -530, 268, 275]

[-10, 130, 890, 970, 570, 240, 480, -360, 60, 650, 970, -530, 270, 280]