Complete each of these tables. What do you notice?

Answer:
0
0
3
3
-4
-4
Step-by-step explanation:
they have the same value for each couple
Answer:
Answer no 1
Step1: 8+(-8)
Step2:8-8=0
Answer no 2
Step 1: 8-8=0 eight cancel from eight
Answer no 3
Step 1: 8+(-5)
Step2: 8-5=3
Answer no 4
Step1: 8-5=3
Answer no 5
Step 1: 8+(-12)
Step 2: 8-12 = -4
Answer no 6
Step 1: 8-12= -4