Let's solve the two problems shown in the image.

Problem 6: $7.82 - 4.65$

To find the difference:

$7.82 - 4.65 = 3.17$

So, the correct answer is 3.17.

Problem 7: $(-9.23) + (-6.57)$

Since both numbers are negative, we add their absolute values and keep the negative sign:

$-9.23 + (-6.57) = -15.80$

So, the correct answer is -15.80.

Would you like more details on how these calculations were performed or have any other questions?

Related Questions:

1. How do you subtract two decimals step by step?
2. What is the rule for adding two negative numbers?
3. How can we check our answer when subtracting decimals?
4. What is the difference between adding and subtracting positive and negative numbers?
5. How do absolute values affect addition or subtraction of negative numbers?

Tip:

When adding negative numbers, always add their absolute values and keep the negative sign.