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: [-5, 420, 202, 836, 90, -160, -75, 649, -127, 965, -256, 128, 491, -242, 675]

[0, 420, 200, 840, 90, -160, -80, 650, -130, 960, -260, 130, 490, -240, 680]