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: [670, 142, 889, -172, 939, -354, -410, -492, 389, 899, 883, 765, -480, 306, -114]

[670, 140, 890, -170, 940, -350, -410, -490, 390, 900, 880, 760, -480, 310, -110]