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: [-199, 639, 691, -1000, -233, -332, -29, -966, 325, 767, 820]

[-200, 640, 690, -1000, -230, -330, -30, -970, 320, 770, 820]