Let's solve the given expression:

\[
-9 + 9 + 10 + (-7) + 1 + 5
\]

Step-by-step solution:
1. Combine \( -9 \) and \( 9 \):
   \[
   -9 + 9 = 0
   \]

2. Now the expression becomes:
   \[
   0 + 10 + (-7) + 1 + 5
   \]

3. Combine \( 10 + (-7) \):
   \[
   10 - 7 = 3
   \]

4. Add \( 3 + 1 \):
   \[
   3 + 1 = 4
   \]

5. Add \( 4 + 5 \):
   \[
   4 + 5 = 9
   \]

So, the final result is:
\[
\boxed{9}
\]

Would you like any more details or have any questions? 

Here are five related questions for practice:
1. Simplify \( -8 + 8 + 12 + (-6) + 3 + 4 \).
2. Evaluate \( -7 + 7 + 15 + (-5) + 2 + 6 \).
3. What is \( -6 + 6 + 9 + (-8) + 4 + 7 \)?
4. Solve \( -10 + 10 + 5 + (-3) + 8 + 2 \).
5. Find the value of \( -5 + 5 + 20 + (-10) + 1 + 0 \).

**Tip:** When dealing with numbers and signs, always handle the signs first to avoid mistakes, such as misinterpreting a negative or positive number.

This problem involves adding a series of integers, both positive and negative, using basic arithmetic rules. The step-by-step solution demonstrates how to simplify –9 + 9 + 10 + (–7) + 1 + 5, using the commutative and associative properties of addition. Suitable for students in Grades 5-6.

Math Problem Statement

–9 9 10 + –7 1 5

Solution

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