Fill in the blanks and write the property used in each of the following.
`0+(-18)=(-18)+"____"`

Answer

To solve the question `0 + (-18) = (-18) + "____"`, we need to fill in the blank and identify the property used.

### Step-by-Step Solution:

1. **Understanding the Expression**:
We start with the expression `0 + (-18)`. This means we are adding 0 to -18.

2. **Applying the Additive Identity Property**:
According to the additive identity property, when we add 0 to any integer, the result is the integer itself. Therefore:
\[ 0 + (-18) = -18 \]

3. **Rearranging the Expression**:
Now we need to express this result in the form `(-18) + "____"`. Since we already established that `0 + (-18) = -18`, we can rewrite this as:
\[ -18 = (-18) + 0 \]

4. **Filling in the Blank**:
From the above expression, we see that the blank can be filled with 0. Thus, we have:
\[ 0 + (-18) = (-18) + 0 \]

5. **Final Answer**:
The filled blank is 0, and the property used is the **Additive Identity Property**.

### Summary:
- The blank is filled with **0**.
- The property used is the **Additive Identity Property**.