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: [280, 389, 761, 105, -492, -115, 358, 618, 921, -896, -524, 96, 16, 28, -528]

[280, 390, 760, 100, -490, -120, 360, 620, 920, -900, -520, 100, 20, 30, -530]