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: [897, -325, 338, 296, 69, 813, -389, 694, -143, -758, -415, -897, 30, -296, -502]

[900, -320, 340, 300, 70, 810, -390, 690, -140, -760, -420, -900, 30, -300, -500]