Question

Tính bằng cách hợp lí nhất ;

2007 + 2007 + 2007 + 2007 x 4

Answer 1

2007+2007+2007+2007 x 4

= 2007 x 3+2007 x 4

= 2007 x (3+4)

= 2007 x 7

= 14049

Answer 2

\(2007+2007+2007+2007\times4\)

\(=2007\times3+2007\times4\)

\(=2007\times\left(3+4\right)\)

\(=2007\times7\)

\(=14049\)

Answer 3

14049 nha ban`

Answer 4

=2007 x 7=2000 x 7 + 7 x 7=14000 + 49=14049

Answer 5

2007 + 2007 + 2007 + 2007 x 4

= 2007 x 3 + 2007 x 4 

= 2007 x ( 3 + 4 )

= 2007 x 7

= 14049

~ ủng hộ mk nha ~