pls give me an explanation on how to do this so I can do the other problems on my own

Answer:
Everything on the left of the 0 is negative and everything to the right of 0 is positive
Step-by-step explanation:
Answer:
-2
3
Step-by-step explanation:
This is because on the left it's negatif like -1,-2,-3
while in the right side it's positif which is 0,1,2,3,4,5