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: [309, -204, 555, -5]

SOLUTION: [310, -200, 560, 0]

PROBLEM: [940, 777, -633, -607, 205, -132, 330, 318, 620]

SOLUTION: [940, 780, -630, -610, 200, -130, 330, 320, 620]

PROBLEM: [-544, -349, 71]

SOLUTION:
[-540, -350, 70]