Adding and Subtracting Rational Numbers

Flashcard
•
Mathematics
•
6th - 7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rational number?
Back
A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
2.
FLASHCARD QUESTION
Front
How do you add two negative rational numbers?
Back
To add two negative rational numbers, you add their absolute values and keep the negative sign. For example, -3 + -5 = -(3 + 5) = -8.
3.
FLASHCARD QUESTION
Front
What is the result of -13 - (-4)?
Back
-9
4.
FLASHCARD QUESTION
Front
How do you subtract a negative number from a negative number?
Back
Subtracting a negative number is the same as adding its absolute value. For example, -5 - (-3) = -5 + 3 = -2.
5.
FLASHCARD QUESTION
Front
What is the sum of -12 and -8?
Back
-20
6.
FLASHCARD QUESTION
Front
How do you find the change in temperature when it drops from a positive to a negative value?
Back
Subtract the final temperature from the initial temperature. For example, if the temperature drops from 15 degrees to -12 degrees, the change is 15 - (-12) = 15 + 12 = 27 degrees.
7.
FLASHCARD QUESTION
Front
What is the result of -31 + -7?
Back
-38
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