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: [-521, 100, -56, 436, -518, -209, 48, -201, -703, -253, -698]

[-520, 100, -60, 440, -520, -210, 50, -200, -700, -250, -700]