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: [921, 91, 260, -724, 181, 424]

SOLUTION: [920, 90, 260, -720, 180, 420]

PROBLEM: [-446, -880, -76, -815, -667, -155, -20, 143, 222, -583]

SOLUTION:
[-450, -880, -80, -820, -670, -160, -20, 140, 220, -580]