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: [263, -740, 890, 80, 105, -173, -33, 984, 991, -148, -964, 835]

[260, -740, 890, 80, 100, -170, -30, 980, 990, -150, -960, 840]