TASK 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.
PROBLEM: [80, 869]

SOLUTION: [80, 870]

PROBLEM: [344, 313, 186, 811, 481, -30]

SOLUTION: [340, 310, 190, 810, 480, -30]

PROBLEM: [-121, -780, 556, 467, -28, 268, 20, -493]

SOLUTION:
[-120, -780, 560, 470, -30, 270, 20, -490]