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: [-270, 416, -108, -236, -599, -646, -674, -297, 321, 938, -808, 826, 367, 845, -552]

[-270, 420, -110, -240, -600, -650, -670, -300, 320, 940, -810, 830, 370, 840, -550]