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: [-423, -350, -381, -171, -273, 741, -671, 804, 247, 785, -991, -38, 585, 299, 417]

[-420, -350, -380, -170, -270, 740, -670, 800, 250, 780, -990, -40, 580, 300, 420]