Question

12.100+12.900

Answer 1

12.100+12.900

=12.(100+900)

=12.100

=1200

Answer 2

12.100+12.900

=12(100+900)

=12.1000

=12000

ai k tui tui k lại 

๖ۣۜH๖ۣۜU๖ۣۜY  ๖ۣۜR๖ۣۜI๖ۣۜO

Answer 3

=1200

nha bạn

tk nhé@@@@@@@@@@@@@@@@@@@@@@

LOL

Answer 4

1200

tk mk mk tk lại 

ok