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: [-804, 398, -42, 538, -900, 924, 207, 137, 472, -896, 639, -867, -42, -431, -628]

[-800, 400, -40, 540, -900, 920, 210, 140, 470, -900, 640, -870, -40, -430, -630]