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: [343, 852, 596, 428, 534, 100, -537, -172, -657, -284, 249]

[340, 850, 600, 430, 530, 100, -540, -170, -660, -280, 250]