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Pre Algebra

Evaluating algebraic expressions by substituting given numbers for the variables in the expressions; practicing with all four operations
Evaluating arithmetic expressions by substituting for two variables and combining like terms
Evaluating arithmetic expressions by substituting given numbers for the variables in the expressions; practicing with all four operations.
Evaluating arithmetic expressions by substituting one variable and combining like terms

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{(a + b)}^{2}

{(a + b)}^{2}

{(a + b)}^{2}

{(a + b)}^{2}

{(a + b)}^{2}