Question

Tính nhanh 

(25+51)+(42-25-53-51)

Answer 1

(25+51)+(42-25-53-51)

Answer 2

  ( 25 + 51 ) + ( 42 - 25 - 53 - 51 )

= 25 + 51 + 42 - 25 - 53 - 51

= (25 - 25) + (51- 51) + (42 - 53)

= -11

Answer 3

mình nhầm

(25+51)+(42-25-53-51)

=25+51+42-25-53-51

=(25-25)+(51-51)+(42-53)

=-8

chúc bạn học tốt

Answer 4

= 25+51+42-25-53-51

=( 25-25 ) + (51-51 ) + ( 42-53 )

= 0+0+ (-11)

=(-11)