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: [449, 3, 776, 427, 67, -73, 276, -957, -243, 480, -658, 770]

[450, 0, 780, 430, 70, -70, 280, -960, -240, 480, -660, 770]