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: [387, -6, 759, 808, -932, -649, 804, -267, 540, 761, 673]

[390, -10, 760, 810, -930, -650, 800, -270, 540, 760, 670]