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: [-330, 633, 323, 121, -460, -213, -20]

SOLUTION: [-330, 630, 320, 120, -460, -210, -20]

PROBLEM: [535, -305, 181, -146, 499]

SOLUTION: [540, -300, 180, -150, 500]

PROBLEM: [841, 241, 274, 2, 983, 992, -109, 173, 433, 803, -454, 518]

SOLUTION:
[840, 240, 270, 0, 980, 990, -110, 170, 430, 800, -450, 520]