TASK 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.
PROBLEM: [-641, -460, -142, 77, -456, -669, 421, -68, -513, 974, 458]

SOLUTION: [-640, -460, -140, 80, -460, -670, 420, -70, -510, 970, 460]

PROBLEM: [-111, -763, 823, -564, -470, -742, 580]

SOLUTION: [-110, -760, 820, -560, -470, -740, 580]

PROBLEM: [-645, 278, 871, 250, 918, 852, 404, -121]

SOLUTION:
[-640, 280, 870, 250, 920, 850, 400, -120]