Let's break down the expression step by step:

\[ B = (-10) + (+4) - (-15) + (+3) \]

1. First, evaluate the parentheses:
   \[ (-10) = -10 \]
   \[ (+4) = 4 \]
   \[ (-(-15)) = +15 \] (since subtracting a negative is equivalent to adding a positive)
   \[ (+3) = 3 \]

2. Now, combine the numbers:
   \[ B = -10 + 4 + 15 + 3 \]

3. Perform the addition:
   \[ -10 + 4 = -6 \]
   \[ -6 + 15 = 9 \]
   \[ 9 + 3 = 12 \]

So, the value of \( B \) is:
\[
B = 12
\]

Would you like further details on how these steps were done, or do you have any questions?

Here are five related questions to explore:
1. What is the rule for subtracting negative numbers?
2. How does adding and subtracting integers differ?
3. Can you explain why subtracting a negative becomes addition?
4. What happens when you add a positive number to a negative number?
5. How can you simplify expressions with multiple positive and negative numbers?

**Tip:** Always handle parentheses first in any mathematical expression to avoid confusion with signs and operations!

Learn how to solve the integer operation expression (-10) + (+4) - (-15) + (+3) using basic arithmetic rules. This problem covers adding and subtracting negative and positive integers, and is suitable for students in Grades 5-6. Follow our step-by-step guide to simplify similar expressions with ease.

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