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: [-542, -308, -869, -948, 568, 240, -616, -412, -650, -304, -600, -492, -426, 208, -427]

[-540, -310, -870, -950, 570, 240, -620, -410, -650, -300, -600, -490, -430, 210, -430]