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: [389, -956, -994, -905, -49]

SOLUTION: [390, -960, -990, -900, -50]

PROBLEM: [451, -949, -143, 548, -229, 732, 839, 901, -231, 700, 662]

SOLUTION: [450, -950, -140, 550, -230, 730, 840, 900, -230, 700, 660]

PROBLEM: [-816, -509]

SOLUTION:
[-820, -510]