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: [517, 315]

SOLUTION: [520, 320]

PROBLEM: [7, 903, -634, -912, -425, 76, -109, -252]

SOLUTION: [10, 900, -630, -910, -420, 80, -110, -250]

PROBLEM: [-277, 621, -844, 726, 66, 480]

SOLUTION:
[-280, 620, -840, 730, 70, 480]