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: [-836, -504, 467, 896, 988, 227, -16, -86, 648, -831, 437, 965]

SOLUTION: [-840, -500, 470, 900, 990, 230, -20, -90, 650, -830, 440, 960]

PROBLEM: [871, -369, -846, -153, 243, -473]

SOLUTION: [870, -370, -850, -150, 240, -470]

PROBLEM: [669, 883, 259, -492, 385, 695, 638, 844, -321]

SOLUTION:
[670, 880, 260, -490, 380, 700, 640, 840, -320]