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: [312, 374, -49, -147, 647, 855, 941, 777, -933, 210, -78, 318, -177, 813]

[310, 370, -50, -150, 650, 860, 940, 780, -930, 210, -80, 320, -180, 810]