Evaluating Algebraic Expressions
Flashcard
•
Mathematics
•
8th 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 can include numbers, variables, and operation symbols. It does not have an equality sign.
Tags
CCSS.6.EE.A.2B
2.
FLASHCARD QUESTION
Front
What does it mean to evaluate an algebraic expression?
Back
To evaluate an algebraic expression means to substitute the values of the variables into the expression and perform the operations to find a numerical result.
Tags
CCSS.6.EE.A.2C
3.
FLASHCARD QUESTION
Front
What is the order of operations used when evaluating expressions?
Back
The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.
Tags
CCSS.6.EE.A.2C
4.
FLASHCARD QUESTION
Front
How do you evaluate the expression a^2 - b^2 when a = 4 and b = -2?
Back
Substituting the values gives: 4^2 - (-2)^2 = 16 - 4 = 12.
Tags
CCSS.6.EE.A.2C
5.
FLASHCARD QUESTION
Front
What is the formula for the sum of squares?
Back
The sum of squares formula is x^2 + y^2 = (x + yi)(x - yi), where i is the imaginary unit.
Tags
CCSS.HSN.CN.C.8
6.
FLASHCARD QUESTION
Front
How do you evaluate the expression |10p - 7q| when p = 9 and q = 2?
Back
Substituting the values gives: |10(9) - 7(2)| = |90 - 14| = |76| = 76.
Tags
CCSS.6.EE.A.2C
7.
FLASHCARD QUESTION
Front
What is the significance of absolute value in expressions?
Back
Absolute value measures the distance of a number from zero on the number line, always resulting in a non-negative value.
Tags
CCSS.6.NS.C.7C
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