Question

1+(-2)+6+4=?

Answer 1

1 + (-2) + 6 + 4

= (-1) + 6 + 4

= (-1) + 10

= 9

Answer 2

1+(-2)+6+4

=(-1)+6+4

=5+4

=9

Answer 3

1+(-2)+6+4

=1-2+6+4

=(-1)+6+4

=5+4

=9

Answer 4

1 + (-2) + 6 + 4

= (-1) + 6 + 4

= (-1) + 10

= 9