Ch 3 Test Review (Algebraic Expressions/Distributive Property)

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What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols (like +, -, *, /). For example, 3x + 5 is an algebraic expression.

Tags

CCSS.6.EE.A.2B

Front

What does the distributive property state?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by two or more terms inside a set of parentheses.

Tags

CCSS.6.EE.A.3

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How do you express '20 fewer than the number f' in algebraic terms?

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The expression is f - 20.

Tags

CCSS.6.EE.A.2A

Front

What is the equivalent expression for 3(5x + 4y)?

Back

The equivalent expression is 15x + 12y.

Tags

CCSS.6.EE.A.3

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If there are n flowerbeds and each has 15 roses, how do you express the total number of roses?

Back

The total number of roses is expressed as 15n.

Tags

CCSS.6.EE.B.6

Front

How do you simplify the expression 7.8p + 12.8 - 2.8p?

Back

The simplified expression is 5p + 12.8.

Tags

CCSS.7.EE.A.1

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What is the value of the expression 180 - 4ab when a = 4 and b = 5?

Back

The value is 100.

Tags

CCSS.6.EE.A.2C

Front

What is a variable in algebra?

Back

A variable is a symbol (usually a letter) that represents an unknown value. For example, in the expression 2x + 3, x is the variable.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

Tags

CCSS.6.EE.A.2C

Front

What is the difference between an equation and an expression?

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An equation states that two expressions are equal, while an expression is a combination of numbers and variables without an equality sign.