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: [937, -355, -374, -242, 302, 490, -763, 921, 355, -385, -785, -30]

[940, -360, -370, -240, 300, 490, -760, 920, 360, -380, -780, -30]