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: [674, -278, 505, -6, 818, -998, -723, 755, 983, -761, 439, 17]

[670, -280, 500, -10, 820, -1000, -720, 760, 980, -760, 440, 20]