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: [919, 458, 606, 390, -446, -849, -815, 684, -978, -520, 637, 938, 873, -483, -970]

[920, 460, 610, 390, -450, -850, -820, 680, -980, -520, 640, 940, 870, -480, -970]