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: [684, 375, 891, 727, 464, -280, 333, -17, 646, 475, 629, 896, -193, -711, 642]

[680, 380, 890, 730, 460, -280, 330, -20, 650, 480, 630, 900, -190, -710, 640]