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: [-99, 237, -537, 365, -959, 369, 922, 349, 259, 598, -137, -173, -671, -34, -923]

SOLUTION: [-100, 240, -540, 360, -960, 370, 920, 350, 260, 600, -140, -170, -670, -30, -920]

PROBLEM: [-107, -577, -126, 598, -542, -590, 329, 230, 517]

SOLUTION: [-110, -580, -130, 600, -540, -590, 330, 230, 520]

PROBLEM: [-388, 630, 14, -693, -706, 969]

SOLUTION:
[-390, 630, 10, -690, -710, 970]