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: [620, 312, 608, -774, -213, 693, -666, -602, 140, -246, 171, -984, -510, 54]

[620, 310, 610, -770, -210, 690, -670, -600, 140, -250, 170, -980, -510, 50]