https://r2.erweima.ai/mathbot/image/17230686105076glo1r2t.jpg

https://r2.erweima.ai/mathbot/image/1723068670647vphua6ju.jpg

Let's solve the given expressions in the images.

### Image 1: \((-78) + (-62)\)

To add two negative numbers, you add their absolute values and then apply the negative sign to the result:

\[
-78 + (-62) = -(78 + 62) = -(140) = -140
\]

So, \((-78) + (-62) = -140\).

### Image 2: \((-15) + (-42)\)

Similarly, for the second image:

\[
-15 + (-42) = -(15 + 42) = -(57) = -57
\]

So, \((-15) + (-42) = -57\).

If you want details or have any questions, feel free to ask!

Here are 8 relative questions that expand on this information:
1. What is the general rule for adding two negative numbers?
2. How do you subtract a negative number from another negative number?
3. What happens when you multiply two negative numbers?
4. How do you handle the addition of a positive and a negative number?
5. Can you provide an example of adding three negative numbers?
6. How would you solve \((-23) + (-17)\)?
7. What is the sum of \(-45\) and \(-30\)?
8. How do you explain the concept of absolute value in simple terms?

**Tip:** When adding or subtracting negative numbers, think about their positions on a number line to visualize the result better.

Explore how to add negative numbers with step-by-step examples and understand the rules for adding two negative numbers. This problem covers basic arithmetic concepts, including adding negative integers and applying the rule for adding two negative numbers. Suitable for students in Grades 5-8.

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