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: [-712, 47, -909, 609, 729, -339]

SOLUTION: [-710, 50, -910, 610, 730, -340]

PROBLEM: [-943, 660, -524, 373, 510, -462, 944, -318, -406]

SOLUTION: [-940, 660, -520, 370, 510, -460, 940, -320, -410]

PROBLEM: [-641, -460, -142, 77, -456, -669, 421, -68, -513, 974, 458]

SOLUTION:
[-640, -460, -140, 80, -460, -670, 420, -70, -510, 970, 460]