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: [-579, 129, -577, 554, 155, -149, 621, -864, 847, -300]

SOLUTION: [-580, 130, -580, 550, 160, -150, 620, -860, 850, -300]

PROBLEM: [-739, 529, -781, -160, -152, 91, -211, 900, 447, -299, -800, 475]

SOLUTION: [-740, 530, -780, -160, -150, 90, -210, 900, 450, -300, -800, 480]

PROBLEM: [100, 334, 828, -271, 817, 96, -589, -502, -384, 183, -487, 305, -15, 757]

SOLUTION:
[100, 330, 830, -270, 820, 100, -590, -500, -380, 180, -490, 300, -20, 760]