Add.
$-8+(+7)=$
A. $-1$
B. $15$
C. $-15$
D. $1$
Answer (2)
We are adding two integers with different signs.
The calculation is: − 8 + 7 = − 1
The result is a negative number because the absolute value of -8 is greater than the absolute value of +7.
The final answer is − 1 .
Explanation
Understanding the Problem We are asked to add two integers, -8 and +7. This is a straightforward arithmetic problem.
Visualizing the Addition To add these numbers, we can think of it as starting at -8 on the number line and moving 7 units to the right.
Performing the Calculation Performing the addition: − 8 + 7 = − 1
Final Answer Therefore, the sum of -8 and +7 is -1.
Examples
Imagine you are tracking your bank account. You have an overdraft of $8 (represented as -8), and then you deposit $7 (represented as +7). After the deposit, your account balance is -$8 + $7 = -$1. So, you still have an overdraft of $1.
When adding − 8 and + 7 , we subtract the smaller absolute value from the larger one, resulting in 1 . Since − 8 is the larger absolute value, the final result is − 1 . Thus, the answer is − 1 .
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