12000-(1500*2+1800*3+1800*2/3)

=12000 - (3000+5400+1200)

=12000-9600

=2400

12000-(1500.2+1800.3+1800.2:3)

=12000-(3000+5400+3600:3)

=12000-(12000:3)

=12000-4000

=8000

mik viet lon het tr roi

12000 - (1500.2+ 1800.3+1800.2:3)

= 12000 - ( 3000 + 5400 + 1200 )

= 12000 - 9600

= 2400

12000 - (1500.2+ 1800.3+1800.2:3)

= 12000 - ( 3000 + 5400 + 1200 )

= 12000 - 9600

= 2400

C=12 000-(1 500.2+1 800.3+1 800.2:3)

C=12 000-(3 000+5 400+3 600:3)

C=12 000-(8 400+1 200)

C=12 000-9 600

C=2 400

=12000-(1500.2+1800.2:3)

=12000-(3000+1200)

=12000-4200

=7800

tính theo cách bình thường thôi

=12000-9600

=2400

\(12000-\left(1500.2+1800.3+1800.2:3\right)=1200-9600=2400\)

12000-(3000+5400+1200)

=12000-9600

=24000

đúng cho mình nha bạn

12000-(1500.2+1800.3+1800.2/3)

=12000-9600

=24000

chọn nha mình nha các bạn! ^^

12 000 - ( 1 500 . 2 + 1 800 . 3 + 1 800 . 2 : 3 )

= 12 000 - ( 3 000 + 5 400 + 1 200 )

= 12 000 - ( 8 400 + 1 200 )

= 12 000 - 9 600

= 2 400

1200-(1500x2+1800x3+1800x2:3)

=1200-(3000+5400+3600:3)

=1200-(3000+5400+1200)

=1200-(8400+1200)

=1200-9600=-8400