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: [344, -601, -980, 905, -724, 376, -147, 891, 388, 659, 583, 265, -300, 417]

[340, -600, -980, 900, -720, 380, -150, 890, 390, 660, 580, 260, -300, 420]