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: [969, 14, -242, -910, 991, 79, -30, -257, -501, 804, -477, 107, 878, -235, -537]

[970, 10, -240, -910, 990, 80, -30, -260, -500, 800, -480, 110, 880, -240, -540]