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: [315, 169, 909, -678, 773, -518]

SOLUTION: [320, 170, 910, -680, 770, -520]

PROBLEM: [-555, 431, -485, -212, -461, 94, -680, -446, 71, 589, -548, 528, 689, -501, 78]

SOLUTION: [-560, 430, -480, -210, -460, 90, -680, -450, 70, 590, -550, 530, 690, -500, 80]

PROBLEM: [336, -316, -464, -616, -631, 119, 62, 636, 210, 820]

SOLUTION:
[340, -320, -460, -620, -630, 120, 60, 640, 210, 820]