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: [669, -455, 147, 256, -968, -894, -48, -857, -394, 63, -984]

[670, -460, 150, 260, -970, -890, -50, -860, -390, 60, -980]