Question

tính nhanh

1996 + 3992 + 5988 + 7984 = ?

Answer 1

(1996+7984)+(3992+5998)

=19960

ủng hộ nha

Answer 2

=(3992+5988)+(7984+1996)

=9980+9980

=19960

Answer 3

1996 + 3992 + 5988 + 7984 = ( 1996 + 7984 ) + ( 3992 + 5988 )

= 9980 + 9980

=19960