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: [233, -977, -153, 255, -310, -8, 737, -40, -724, -636, 388, -778, -876, 373, -279]

[230, -980, -150, 260, -310, -10, 740, -40, -720, -640, 390, -780, -880, 370, -280]