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: [39, 903, -913, -606, -602, 761, 689, 357, -341, 374, -976, 2, 57, 33, 338]

[40, 900, -910, -610, -600, 760, 690, 360, -340, 370, -980, 0, 60, 30, 340]