Answer:
2+2=4. 4+4=8. 5+5=10. 6+6=12.
Step-by-step explanation:
I'll just explain one? It takes around 360 pages to fully prove 1+1=2 so I'll just explain it the way I do. Draw some tallies. Draw 2 tallies and 2 more next to them. Count the total tallies, and you should get 4. (Sorry about this)