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: [-837, 306, -543, -48, -654, 807, 32, -675, 253, 905, 9, 878, 124]

[-840, 310, -540, -50, -650, 810, 30, -680, 250, 900, 10, 880, 120]