Adding and Subtracting Algebraic Expressions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an algebraic expression?
Back
An algebraic expression is a mathematical phrase that includes numbers, variables, and operation symbols (like +, -, *, /). For example, 3x + 5 is an algebraic expression.
Tags
CCSS.6.EE.A.2B
2.
FLASHCARD QUESTION
Front
What does it mean to simplify an algebraic expression?
Back
To simplify an algebraic expression means to combine like terms and reduce it to its simplest form.
Tags
CCSS.7.EE.A.1
3.
FLASHCARD QUESTION
Front
What are like terms?
Back
Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms, while 3x and 4y are not.
Tags
CCSS.6.EE.A.2B
4.
FLASHCARD QUESTION
Front
What is a coefficient in an algebraic expression?
Back
A coefficient is a numerical factor that multiplies a variable. For example, in 6f^2, 6 is the coefficient.
Tags
CCSS.6.EE.A.2B
5.
FLASHCARD QUESTION
Front
How do you add algebraic expressions?
Back
To add algebraic expressions, combine like terms by adding their coefficients. For example, (-2x + 8) + (4x + 1) simplifies to 2x + 9.
Tags
CCSS.HSA.APR.A.1
6.
FLASHCARD QUESTION
Front
How do you subtract algebraic expressions?
Back
To subtract algebraic expressions, distribute the negative sign and then combine like terms. For example, (3x^2 + 2x - 1) - 2(x + 4) simplifies to 3x^2 - 9.
Tags
CCSS.HSA.APR.A.1
7.
FLASHCARD QUESTION
Front
What is the result of simplifying 3x + 2y - 2x + 3y?
Back
The result is x + 5y.
Tags
CCSS.7.EE.A.1
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