Question

(-404)+1002+(-2000)+1998+(-596)

126+(-20)+2004+(-106)

Answer 1

= 0

= 2004

Answer 2

(-404)+1002+(-2000)+1998+(-596)

=[1002+1998+(-2000)]+[(-404)+(-596)]

= 0+0=0

Answer 3

126+(-20)+2004+(-106)

={126+[(-20)+(-106)]+2004

=0 + 2004 =2004