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: [215, 558, -921, 333, -530, 598, -672, -900, 935, -728, -135, 224, -104, -424]

[220, 560, -920, 330, -530, 600, -670, -900, 940, -730, -140, 220, -100, -420]