1/ 13-Identifying Parts of Numerical & Algebraic Expressions

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What is a numerical expression?

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A numerical expression is a mathematical phrase that includes numbers and operations but does not have variables.

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What is an algebraic expression?

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An algebraic expression is a mathematical phrase that includes numbers, variables, and operations.

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What is a term in an expression?

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A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction.

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How do you identify the number of terms in an expression?

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Count the number of distinct parts separated by '+' or '-' signs.

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What is a coefficient?

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A coefficient is a numerical factor in a term that multiplies a variable.

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What is a variable?

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A variable is a symbol, often a letter, that represents an unknown value in an expression or equation.

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What is a constant?

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A constant is a fixed value that does not change.

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What is the difference between a numerical equation and a numerical expression?

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A numerical equation states that two expressions are equal, while a numerical expression does not include an equality sign.

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What is the role of parentheses in expressions?

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Parentheses indicate which operations should be performed first in an expression.

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How do you simplify an expression?

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To simplify an expression, combine like terms and perform any operations according to the order of operations.