Question

tính nhanh:  72:54-72:45

Answer 1

 72:54-72:45

=72:(54-45)

=72:9

=8

Answer 2

72 : 54 - 72 : 45

= 72 : ( 54 - 45 )

= 72 : 9

= 8

Answer 3

72 : 54 - 72 : 45 = 72 : (54 - 45) = 72 : 9 = 8

Answer 4

72:54-72:45

= 72:(54-45)

= 72:9

= 8

Answer 5

72:54-72:45

=72:(54-45)

=72:9

=8

Answer 6

\(72:54-72:45\)

\(=72: \left(54-45\right)\)

\(=72:9\)

\(=8\)