Question

Tính nhanh :

43 . 22 + 78 . 43

Answer 1

\(43.22+78.43=43\left(22+78\right)\)

\(=43.100\)

\(=4300\)

Answer 2

\(43\cdot22+78\cdot43\)

\(=43\cdot\left(22+78\right)\)

\(=43\cdot100\)

\(=4300\)

Answer 3

43 . 22 + 78 . 43

= 43 . ( 22 + 78 )

= 43 . 100

= 4300

Answer 4

43 x 22 + 78 x 43 

= 43 x ( 22 + 78 )

= 43 x 100 

= 4 300

Answer 5

43 . 22 + 78 . 43

= 43 . ( 22 + 78 )

= 43 . 100

= 4300

Answer 6

43.22+78.43

=43.(22+78)

=43.100

=4300