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: [125, 915, 259, -135, 13, 171]

SOLUTION: [120, 920, 260, -140, 10, 170]

PROBLEM: [-645, 278, 871, 250, 918, 852, 404, -121]

SOLUTION: [-640, 280, 870, 250, 920, 850, 400, -120]

PROBLEM: [267, -112, -186, 272, -912, -518, -4, 862, -158, 265, -484, 808, -322]

SOLUTION:
[270, -110, -190, 270, -910, -520, 0, 860, -160, 260, -480, 810, -320]