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: [405, -571, -835, -670, -952, 749, -85, 420, -653, -389]

[400, -570, -840, -670, -950, 750, -80, 420, -650, -390]