Question

1998+23+2+77

Answer 1

=(1998+2)+(77+23)

=2000+100

=2100

Answer 2

2100 nha

k cho mình nha

Answer 3

= (1998 + 2) + (23 +77)

= 2000 + 100

= 2100

Answer 4

1998+23+2+77=(1998+2)+(77+23)

                     =1000+100

                     =1100

  

Answer 5

1998+23+2+77

=(1998+2)+(23+77)

=2000+100

=2100

Answer 6

1998+23+2+77

=(1998+2)+(23+77)

=2000+100

=2100