Which expression is equivalent to 2.2 - 2.5?

2.5-2.2
2.2+2.5
2.2+(-2.5)
2.2- (-2.5
which one is equivalent to

2.2 - 2.5 is equivalent to 2.2 - (-2.5).

The expression that is equivalent to 2.2 - 2.5 is 2.2 + (-2.5).