Question

1-2+3-4+5-6+7-8+9-10=?

Answer 1

1-2+3-4+5-6+7-8+9-10=?

= (-1) + (-1) + (-1) + ( -1) + (-1)

= - 5

Answer 2

 = - 5 

 tích ủn hoọ nha

Answer 3

1-2 +3-4 +5-6+7-8+9-10

 = ( 1-2 ) + ( 3-4 ) + ( 5-6 ) + ( 7-8 ) + (9-10 ) 

= -1 + (-1) + ( -1 ) + ( -1 ) + (-1 )

= -5

duyệt nha !!!!!!!!!!!!!

Answer 4

  1-2+3-4+5-6+7-8+9-10

= (1-2)+(3-4) + (5-6)+(7-8)+(9-10)

= (-1) + (-1) + (-1) + (-1) +(-1)

= (-1) . 5

= -5

h ủng hộ nhé