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: [966, -17, -560, 916, 177, -909, -798, 662, 387, 404, 497, -939]

[970, -20, -560, 920, 180, -910, -800, 660, 390, 400, 500, -940]