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: [646, 667]

SOLUTION: [650, 670]

PROBLEM: [-554, 761, -156, -692, 716]

SOLUTION: [-550, 760, -160, -690, 720]

PROBLEM: [-614, -38, 372, -435, -875, -40, -18, -987, -307, 920, 666, 684]

SOLUTION:
[-610, -40, 370, -440, -880, -40, -20, -990, -310, 920, 670, 680]