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: [596, -381, -789, -256, 423, 940, 100, -47, -136, 818, -711, -758, -124]

[600, -380, -790, -260, 420, 940, 100, -50, -140, 820, -710, -760, -120]