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Grade 3 - Patterns and Relations

Standard 3.PR.4 - Practice using multiplication and division to solve for a variable.

Included Skills:

Solve one-step addition and subtraction equations involving a symbol to represent an unknown number.
Explain the purpose of the symbol in a given addition or subtraction equation with one unknown; e.g., in the equation 3 + ? = 10, the triangle represents the number that would make the equation true.
Create an addition or subtraction equation with one unknown to represent a given combining or separating action.
Provide an alternative symbol for the unknown in a given addition or subtraction equation.
Solve, using manipulatives, a given addition or subtraction equation with one unknown that represents combining or separating actions.
Solve a given addition or subtraction equation with one unknown, using a variety of strategies, including guess and test.
Solve a given addition or subtraction equation when the unknown is on the left or the right side of the equation.
Explain why the unknown in a given addition or subtraction equation has only one value.

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