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: [-400, 200, 973, -85, -650, -802, 172, -781, 922, 47, -937, 858]

[-400, 200, 970, -80, -650, -800, 170, -780, 920, 50, -940, 860]