Question

72,9x99+72+0,9

Answer 1

72,9*999+72+0,9=

=161117,1+72+0,9

=161190

Answer 2

72,9x99+72+0,9 

=7217,1+72+0,9

=7289,1+0,9

=7290

t..i..c..k cho mình nha

Answer 3

72,9x99+72+0,9=

=161117,1+72+0,9

=161190

Answer 4

=72x99+72+0.9+0.9

=72x(99+1.8)

=72x100.8

=7257.6

Answer 5

=7217.1+72+0.9

=7289.1+0.9

=7290

Answer 6

các bạn ơi mình làm sai đó!