TASK 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.
PROBLEM: [206, 454, -366, 109, -195, 964, 803, 119, -286, 672, 639, -523, -354]

SOLUTION: [210, 450, -370, 110, -200, 960, 800, 120, -290, 670, 640, -520, -350]

PROBLEM: [-638, 723, 469, -320, -612, -715, -416, -268, 889, 546]

SOLUTION: [-640, 720, 470, -320, -610, -720, -420, -270, 890, 550]

PROBLEM: [609, -726, 204, 993]

SOLUTION:
[610, -730, 200, 990]