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: [833, 969, 294, -335, 661, -562, 686, -344, 680, -599, -940, 764, 898, -935, -219]

[830, 970, 290, -340, 660, -560, 690, -340, 680, -600, -940, 760, 900, -940, -220]