Respuesta :

1 + 1 + 1 + 1

Now, take away 2.

1 + 1 + 1 + 1 - 1 - 1

1 + 1 is all we have left.

1 + 1 = 2.

So 2 is the answer.
2 bones
4-2=2
4-1=3
4-2=2