Question

Tính bằng cách thuận tiện 
769 x 85 - 769 x 75

Answer 1

769 x 85 - 769 x 75
= 769 x (85 - 75)

= 769 x 10

= 7690

Answer 2

 

769 x 85 - 769 x 75=769x(85-75)

=769x10=7690

 

Answer 3

= 769 x (85 - 75)

= 769 x 10

= 7690

Answer 4

769 x 85 - 769 x 75  = 769 x (85 - 75)
                                  = 769 x 10

                                   = 7690

Answer 5

769 x 85 - 769 x 75
=769 x (85 - 75)

=769 x 10

=7690

_HT_

Answer 6

    769 x 85 - 769 x 75
= 769 x (85 - 75)

= 769 x 10

= 7690

Answer 7

769 x 85 - 769 x 75
= 769 x (85 - 75)

= 769 x 10

= 7690