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: [-979, 623, -392, -669, -392, -5, -467, -839]

SOLUTION: [-980, 620, -390, -670, -390, 0, -470, -840]

PROBLEM: [825, -510, -659, 907, -727, 568, 362, -774]

SOLUTION: [820, -510, -660, 910, -730, 570, 360, -770]

PROBLEM: [20, 754, -179, -770, -863, -855, -933, 878, 306]

SOLUTION:
[20, 750, -180, -770, -860, -860, -930, 880, 310]