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: [250, 940, 273, -975, 40, 386, 845, -140, -526, 746, 738, 771]

[250, 940, 270, -980, 40, 390, 840, -140, -530, 750, 740, 770]