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: [727, 247, -887, 950, -897, 503, -311, -965, 940, 900, -501, -104, 327, -589, 393]

SOLUTION: [730, 250, -890, 950, -900, 500, -310, -960, 940, 900, -500, -100, 330, -590, 390]

PROBLEM: [705, 13, 419, 861, 436, -960, -490, 930, -139, 109, 42, -853, -1, 409]

SOLUTION: [700, 10, 420, 860, 440, -960, -490, 930, -140, 110, 40, -850, 0, 410]

PROBLEM: [475, 171, -138, 605, -447, -92, 188, 421, 309, -569, 193, -61, -939]

SOLUTION:
[480, 170, -140, 600, -450, -90, 190, 420, 310, -570, 190, -60, -940]