Solving Equations
1.1 Write and solve number sentences from problem situations that express relationships involving addition and subtraction.
1.2 Understand the
meaning of the symbols +, −, =.
1.3 Create problem situations that might lead to given number sentences involving addition and subtraction..
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Solving Equations
1.21 Relate problem situations to number sentences involving addition and subtraction.
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Solving Equations
Key Standard
1.1.4 Represent relationships of quantities in the form of mathematical expressions, equations, or inequalities.
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1.2.1 Solve problems involving numeric equations or inequalities.
1.3 1 Select appropriate operational and relational symbols to make an expression true (e.g., if 4 __ 3 = 12, what operational symbol goes in the blank?).
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Solving Equations
1.11 Use letters, boxes, or other symbols to stand for any number in simple expressions or equations (e.g., demonstrate an understanding and the use of the concept of a variable).
Key Standard
1.25 Interpret and evaluate mathematical expressions that now use parentheses.
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1.3 Use parentheses to indicate which operation to perform first when writing expressions
containing more than two terms and different operations.
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1.52 Understand that an equation such as y = 3x + 5 is a prescription for determining a second number when a first number is given.
2.0 Students know how to manipulate equations:
2.13 Know and understand that equals added to equals are equal.
2.23 Know and understand that equals multiplied by equals are equal.
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Solving Equations
Key Standard
1.26 Use a letter to represent an unknown number; write and evaluate simple algebraic expressions in one variable by substitution.
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Solving Equations
Key Standard
1.16 Write and solve one-step linear equations in one variable.
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1.21 Write and evaluate an algebraic expression for a given si
tuation, using up to three variables.
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Solving Equations
1.41 Solve problems manually by using the correct order of operations or by using a scientific calculator.
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