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: [-830, -33]

SOLUTION: [-830, -30]

PROBLEM: [309, -658, -583]

SOLUTION: [310, -660, -580]

PROBLEM: [216, 944, -934, 664, 557, 91, 604, -877, -946, -720, -129, 680]

SOLUTION:
[220, 940, -930, 660, 560, 90, 600, -880, -950, -720, -130, 680]