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: [453, 541, 769, -462, 462, 527, -427, 219, 340, 228, -584, -637, 840]

[450, 540, 770, -460, 460, 530, -430, 220, 340, 230, -580, -640, 840]