Question

tính nhanh :

71 x 25 + 71 x 19 + 44 x 29 

 

Answer 1

71 x 25 + 71 x 19 + 44 x 29

= 71 x ( 25 + 19 ) + 44 x 29

= 71 x 44 + 44 x 29

= 44 x ( 71 + 29 )

= 44 x 100

= 4400

Answer 2

71x25+71x19+44x29

=71x(25+19)+44x29

=71x44+44x29

=44x(71+29)=44x100=4400

Answer 3

71 . 25 + 71 . 19 + 44 . 29

= 71 . ( 25 + 19 ) + 44 . 29

= 71 . 44 + 44 . 29

= ( 71 + 29 ) . 44

= 100 . 44 

= 4400

Answer 4

71 x 25 + 71x 19+44x29

=71x(25+19)+44x29

=71x44+44x29

=44x(71+29)

=44x100

=4400