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: [838, -799, -12, 286, -883, 746, 371, -666, 118, -317, 529]

[840, -800, -10, 290, -880, 750, 370, -670, 120, -320, 530]