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: [-398, 599]

SOLUTION: [-400, 600]

PROBLEM: [978, 5, -256, -867, -796]

SOLUTION: [980, 10, -260, -870, -800]

PROBLEM: [172, -785, 906]

SOLUTION:
[170, -780, 910]