Algebraic Expressions and Operations

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What is an algebraic expression?

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

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CCSS.6.EE.A.2B

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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.

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CCSS.6.EE.A.2C

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What is a variable in algebra?

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

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CCSS.6.EE.A.2B

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What is the sum of two numbers?

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The sum of two numbers is the result of adding them together. For example, the sum of 3 and 5 is 8.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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What is the difference between two numbers?

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The difference between two numbers is the result of subtracting one number from another. For example, the difference between 10 and 4 is 6.

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CCSS.2.OA.A.1

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What is the product of two numbers?

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The product of two numbers is the result of multiplying them together. For example, the product of 4 and 5 is 20.

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CCSS.3.OA.A.1

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What is the quotient of two numbers?

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The quotient of two numbers is the result of dividing one number by another. For example, the quotient of 20 and 4 is 5.

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CCSS.3.OA.A.2

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How do you represent 'decreased by' in algebra?

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'Decreased by' is represented by subtraction. For example, 'u decreased by 17' is written as u - 17.

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CCSS.6.EE.A.2A

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What does 'triple' mean in algebra?

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'Triple' means to multiply by 3. For example, 'triple the sum of x and 5' is written as 3(x + 5).

Tags

CCSS.6.EE.A.2A

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What is the meaning of 'cubed' in algebra?

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'Cubed' means to raise a number to the power of 3. For example, n cubed is written as n^3.