Question

1-1+1234567890+9

Answer 1

1-1+1234567890+9

=0+1234567890+9

=0+1234567899=1234567899

Answer 2

1 - 1 + 1234567890 + 9

=0+1234567890 + 9

=1234567899

Answer 3

1234567899

Answer 4

1-1+1234567890+9=1234567899

Answer 5

1-1+1234567890+9

=0 +1234567890+9

=1234567890+9

=1234567899