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: [285, -493, 639, -355, 751, -789, 209, -541, 769, 473, -242]

[280, -490, 640, -360, 750, -790, 210, -540, 770, 470, -240]