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: [726, -220, 292, -464, -262, -39, 126, -844, 518, 417, 325, 781, 881, -856, -456]

[730, -220, 290, -460, -260, -40, 130, -840, 520, 420, 320, 780, 880, -860, -460]