Question

15.(75+25)-25.(15-75)

Answer 1

=3000 nha bn

Answer 2

15 . ( 75 + 25 ) - 25 . ( 15 - 75 )

= 15 . 100 - 25 . ( -60 )

= 1500 - ( -1500 )

= 1500 + 1500

= 3000

Answer 3

15.(75 + 25) - 25.(15 - 75)

= 15.75 + 15.25 - 25.15 + 25.75

= (15.25 - 25.15) + (15.75 + 25.75)

=          0             +    75.(15 + 25)

=               75.40

=                3000