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: [-973, -631, -660, 909, -122, 285, -356, -10, -298, -138]

[-970, -630, -660, 910, -120, 280, -360, -10, -300, -140]