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

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

PROBLEM: [464, 324, -674]

SOLUTION:
[460, 320, -670]