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: [139, -915, -915, 814, 635, -904, -45, 159, 214, -533, 32, 474, -991, -1000, 352]

[140, -920, -920, 810, 640, -900, -40, 160, 210, -530, 30, 470, -990, -1000, 350]