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: [657, 831, 512, -394, -581, 283, -715, -776, 998]

[660, 830, 510, -390, -580, 280, -720, -780, 1000]