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: [538, 638, 183, -251]

SOLUTION: [540, 640, 180, -250]

PROBLEM: [611, 623, 672, -821, 82, -154, 811, -355, 983, -589, -948, -747]

SOLUTION: [610, 620, 670, -820, 80, -150, 810, -360, 980, -590, -950, -750]

PROBLEM: [-260, 825, -499, 532, 399, -985, 734, -662, -529, 823, 985, -431, 612]

SOLUTION:
[-260, 820, -500, 530, 400, -980, 730, -660, -530, 820, 980, -430, 610]