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: [-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: [-533, 65, -454, -33, -771, 946, 598, 85, -321, 253]

SOLUTION: [-530, 60, -450, -30, -770, 950, 600, 80, -320, 250]

PROBLEM: [-312, 292, -831, -874, 26, -58, -2, 697, -915, 440, -810, -315, 399]

SOLUTION:
[-310, 290, -830, -870, 30, -60, 0, 700, -920, 440, -810, -320, 400]