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.
Input: [628, 201, -858, -979, -6, 455, 191, -189, 374, -442, -638, 756, 21, -221]

[630, 200, -860, -980, -10, 460, 190, -190, 370, -440, -640, 760, 20, -220]