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: [334, -249, -717, -375, 504, 307, -343, -679, -59, -143, 580, -518, 914, -698, -658]

[330, -250, -720, -380, 500, 310, -340, -680, -60, -140, 580, -520, 910, -700, -660]