Flashcard (M7A): Adding and Subtracting Rational Numbers (60 points)
Flashcard
•
Mathematics
•
7th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the process to rewrite a subtraction problem as an addition problem?
Back
To rewrite a subtraction problem as an addition problem, change the subtraction of a number to the addition of its opposite. For example, -5.66 - (-4.1) becomes -5.66 + 4.1.
Tags
CCSS.7.NS.A.1B
2.
FLASHCARD QUESTION
Front
What is the result of -6.23 - 7.5?
Back
The result of -6.23 - 7.5 is -13.73.
Tags
CCSS.7.NS.A.1C
3.
FLASHCARD QUESTION
Front
How do you subtract fractions with different denominators, such as 1/4 - 5/6?
Back
To subtract fractions with different denominators, find a common denominator, convert the fractions, and then subtract the numerators. For 1/4 - 5/6, the result is -7/12.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
4.
FLASHCARD QUESTION
Front
What is the mixed number representation of -5.75?
Back
The mixed number representation of -5.75 is -5 and 3/4.
Tags
CCSS.7.NS.A.2D
CCSS.8.NS.A.1
5.
FLASHCARD QUESTION
Front
How do you handle subtracting a negative fraction, such as 5/8 - (-7/8)?
Back
When subtracting a negative fraction, it is equivalent to adding the positive value of that fraction. Therefore, 5/8 - (-7/8) becomes 5/8 + 7/8, which equals 1 and 1/2.
Tags
CCSS.7.NS.A.1B
6.
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.
Tags
CCSS.5.NBT.A.2
7.
FLASHCARD QUESTION
Front
What is the first step in adding or subtracting rational numbers?
Back
The first step is to ensure that the numbers have a common denominator if they are fractions.
Tags
CCSS.7.NS.A.1C
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