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

Generate and analyze patterns.

Multiply and divide within 100.

Reason about and solve one-variable equations and inequalities.

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

Write and interpret numerical expressions.

Work with addition and subtraction equations.

Represent and analyze quantitative relationships between dependent and independent variables.

Perform arithmetic operations on polynomials.

Understand the relationship between zeros and factors of polynomials.

Rewrite rational expressions.

Understand the connections between proportional relationships, lines, and linear equations.

Work with radicals and integer exponents.

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

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

Use properties of operations to generate equivalent expressions.

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

Represent and solve problems involving addition and subtraction.

Create equations that describe numbers or relationships

Analyze patterns and relationships.

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

Solve systems of equations.

Interpret the structure of expressions.

Add and subtract within 20.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Write expressions in equivalent forms to solve problems.

Represent and solve equations and inequalities graphically.

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

Use the four operations with whole numbers to solve problems.

Use polynomial identities to solve problems.

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

Gain familiarity with factors and multiples.

Represent and solve problems involving multiplication and division.

Solve equations and inequalities in one variable.
problem_activity: Task
Consider the algebraic expressions below:
$$ (n + 2)^2 - 4 \qquad \text{and} \qquad n^2 + 4n. $$
Use the figures below to illustrate why the expressions are equivalent:
[IMG]
Find some ways to algebraically verify the same result.


correct_option_index: 22