Subtract.
--10.9 - (-8.4)
A)19.3
B)-2.5
C)-19.3
D)2.5

Name: Subtract. --10.9 - (-8.4) A)19.3 B)-2.5 C)-19.3 D)2.5
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To subtract a negative number, we can simply add its opposite (positive) value. Therefore:

-10.9 - (-8.4) = -10.9 + 8.4 = -2.5

So the correct choice is B. To subtract a negative number, we can think of it as adding the opposite positive number. Therefore, -10.9 - (-8.4) is the same as -10.9 + 8.4. Adding 8.4 to -10.9 gives us -2.5, so the answer is B, -2.5.