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: [-218, -655, 573, -823, 420, 33, 606, 694, 668, -139, -763, -208, -871, 420, 685]

SOLUTION: [-220, -660, 570, -820, 420, 30, 610, 690, 670, -140, -760, -210, -870, 420, 680]

PROBLEM: [-264, -364, 814, -540, 864, -286, -668, -844, 148, 815, 918, 130, -671, -157]

SOLUTION: [-260, -360, 810, -540, 860, -290, -670, -840, 150, 820, 920, 130, -670, -160]

PROBLEM: [-640, 146, 6, -895, 49, -580, -552, -829, -414, -950, -166, 944, -288, 197]

SOLUTION:
[-640, 150, 10, -900, 50, -580, -550, -830, -410, -950, -170, 940, -290, 200]