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: [447, -559, -615, 450, 68, -140, 581, -709, 594, 77, -664, 672, -914, -467, -959]

[450, -560, -620, 450, 70, -140, 580, -710, 590, 80, -660, 670, -910, -470, -960]