Question

1-1-1+1=?

Answer 1

1 - 1 - 1 + 1
= 0 - 1 + 1
= -1 + 1
= 0

1 - 1 - 1 + 1
= 0 - 1 + 1
= -1 + 1
= 0

1 - 1 - 1 + 1
= 0 - 1 + 1
= -1 + 1
= 0

1 - 1 - 1 + 1
= 0 - 1 + 1
= -1 + 1
= 0

Answer 2

1 - 1- 1 + 1

= 0 - 1 + 1

= - 1 + 1

= 0 

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