Question

Tính nhanh : 12 x 45 + 12 x 55

Answer 1

12 x 45 + 12 x 55

= 12 x (45 + 55)

= 12 x 100

= 1200

Ủng hộ mk nha ^_-

Answer 2

12 x 45 + 12 x 55

= 12 x ( 45 + 55 )

= 12 x 100

= 1200

Answer 3

12 x ( 45 + 55 ) 

12 x 100

= 1200

k mk nha!!!!

Answer 4

\(12\cdot45+12\cdot55\)

\(=12\cdot\left(45+55\right)\)

\(=12\cdot100\)

\(=1200\)

Answer 5

12*45+12*55=1200 nha<<<<

Answer 6

Bai nay ap dung tinh chat nhan mot so voi 1 tong,ta co:

12*(45+55)

=12*100

=1200