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: [917, 81, 18, 381, 663, 512, 983, 317, 259, 49, 834, 60, -932, -250, 487]

[920, 80, 20, 380, 660, 510, 980, 320, 260, 50, 830, 60, -930, -250, 490]