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: [303, 636, -708, 916, -669, 645, -920, -410, -806, -820, 277]

[300, 640, -710, 920, -670, 640, -920, -410, -810, -820, 280]