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: [636, -510, -486, 118, -988, 21, -116, -289, -774, -240, -424]

[640, -510, -490, 120, -990, 20, -120, -290, -770, -240, -420]