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: [-6, 2, -578, -349, -980, 221, 494, -833, -288, 14, 612, 979, -219, 90]

[-10, 0, -580, -350, -980, 220, 490, -830, -290, 10, 610, 980, -220, 90]