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: [870, 526, 80, -13, 280, 146, 311, 831, -245, -497]

[870, 530, 80, -10, 280, 150, 310, 830, -240, -500]