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: [434, -80, 960, 25, 520, 69, -107, -357, -244, 619, 470, -897, 747, -399]

[430, -80, 960, 20, 520, 70, -110, -360, -240, 620, 470, -900, 750, -400]