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: [645, -706]

SOLUTION: [640, -710]

PROBLEM: [-442, -917, -916, -193, -619, 373, -637, -64, -843, -249, -475, 683, -407, 403]

SOLUTION: [-440, -920, -920, -190, -620, 370, -640, -60, -840, -250, -480, 680, -410, 400]

PROBLEM: [143, 172, -771, 199, 731, -464]

SOLUTION:
[140, 170, -770, 200, 730, -460]