Question

421 - 2 . {130 - [20+3 .(15+1)]}

 

Answer 1

421 - 2 . {130 - [20 + 3 . (15 + 1)]}

= 421 - 2 . {130 - [20 + 3 . 16]}

= 421 - 2 . {130 - [20 + 48]}

= 421 - 2 . {130 - 68}

= 421 - 2 . 62

= 421 - 124

= 297.

Answer 2

oi cau nay cuc cuc de luon tu lam di

Answer 3

=421-2.[130-(20+3.16)]

=412-2.[130-20+3.(-16)]

=412-2.[130-20+(-48)]

=412-2.[130-(-28)]

=412-2.158

=412-316

=96

Answer 4

mk sai rùi làm như Vĩnh Thụy í

Answer 5

421 - 2 . {130 - [20+3 .(15+1)]}

421 - 2 . { 130 - [ 23 . 16 ] } 

421 - 2 . { 130 - ( - 238 ) 

421 - 2 . 368 

= -315

k nha

Answer 6

421 - 2 . {130 - [20+3 .(15+1)]} = 421 - 2 . {130 - [20 + 3  . 16 ]}

= 421 - 2 . {130 - 20 + 48}

=  421 - 2 . {130 - 20 + 48}