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: [-771, 375, 16, -654, 153, -824, 242, 253, -911, -159, 515, -536, -52, -518, 147]

[-770, 380, 20, -650, 150, -820, 240, 250, -910, -160, 520, -540, -50, -520, 150]