4 ducks

it's Thai Son mountain

history is the longest

human. you have to write in English on this website

1+2+3+10000000=

6+10000000=10000006

4+2+3+200+200+300+12345=

6+3+200+200+300+12345=

9+200+200+300+12345=

209+200+300+12345

409+300+12345=

709+12345=13054

10000+20000+2543+125444=

30000+2543+125444=

32543+125444=1157987

1. kangaroo

2. shark