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: [298, -881, -412, 509, -255, 661, 491, -531, 904, -749]

[300, -880, -410, 510, -260, 660, 490, -530, 900, -750]