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: [-470, 496, -91, -692, 270, 571, 828, -491, 980, 505, -611, -403, 833]

[-470, 500, -90, -690, 270, 570, 830, -490, 980, 500, -610, -400, 830]