options: Use properties of operations to generate equivalent expressions.

Write expressions in equivalent forms to solve problems.

Multiply and divide within 100.

Represent and solve problems involving addition and subtraction.

Represent and solve problems involving multiplication and division.

Use polynomial identities to solve problems.

Interpret the structure of expressions.

Work with addition and subtraction equations.

Add and subtract within 20.

Gain familiarity with factors and multiples.

Generate and analyze patterns.

Write and interpret numerical expressions.

Create equations that describe numbers or relationships

Solve systems of equations.

Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.

Represent and solve equations and inequalities graphically.

Understand solving equations as a process of reasoning and explain the reasoning.

Solve equations and inequalities in one variable.

Analyze and solve linear equations and pairs of simultaneous linear equations.

Rewrite rational expressions.

Use the four operations with whole numbers to solve problems.

Perform arithmetic operations on polynomials.

Understand and apply properties of operations and the relationship between addition and subtraction.

Represent and analyze quantitative relationships between dependent and independent variables.

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

Reason about and solve one-variable equations and inequalities.

Analyze patterns and relationships.

Work with equal groups of objects to gain foundations for multiplication.

Work with radicals and integer exponents.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Understand properties of multiplication and the relationship between multiplication and division.

Solve problems involving the four operations, and identify and explain patterns in arithmetic.

Understand the relationship between zeros and factors of polynomials.

Understand the connections between proportional relationships, lines, and linear equations.
problem_activity: Task
To compute the perimeter of a rectangle you add the length, $l$ and width, $w$ and double this sum.
Write an expression for the perimeter of a rectangle.
Use the expression to ﬁnd the perimeter of a rectangle with length 30 and width 75.


correct_option_index: 29