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: [343, 457, -680, 773, 890, -436, -430, 148, -996, -239, 196, 836]

[340, 460, -680, 770, 890, -440, -430, 150, -1000, -240, 200, 840]