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: [965, -772, 121, 831, 330, 616, 520, -727, 349, 441, -658, -491, 421, -827]

[960, -770, 120, 830, 330, 620, 520, -730, 350, 440, -660, -490, 420, -830]