On a number line,
To subtract -7 from 15, we move _______ steps _______ from 15.

Answer

To solve the problem of subtracting -7 from 15 on a number line, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Operation**:
We need to subtract -7 from 15. Mathematically, this can be expressed as:
\[ 15 - (-7) \]

2. **Applying the Rule of Subtraction**:
Subtracting a negative number is the same as adding its positive counterpart. Therefore, we can rewrite the expression:
\[ 15 - (-7) = 15 + 7 \]

3. **Performing the Addition**:
Now, we perform the addition:
\[ 15 + 7 = 22 \]

4. **Interpreting the Result on the Number Line**:
On a number line, starting from 15, we need to move to the right because we are adding 7.

5. **Counting the Steps**:
Starting from 15, we move 7 steps to the right:
- From 15 to 16 (1 step)
- From 16 to 17 (2 steps)
- From 17 to 18 (3 steps)
- From 18 to 19 (4 steps)
- From 19 to 20 (5 steps)
- From 20 to 21 (6 steps)
- From 21 to 22 (7 steps)

6. **Final Answer**:
Thus, to subtract -7 from 15, we move **7 steps to the right** from 15, and we arrive at **22**.

### Summary:
To subtract -7 from 15, we move **7 steps to the right** from 15.

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