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: [-393, -78, -742, 429, -679, 628, 653, -735, -422, 644, -470, -349, 443, -189, -824]

[-390, -80, -740, 430, -680, 630, 650, -740, -420, 640, -470, -350, 440, -190, -820]