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

Interpret the structure of expressions.

Rewrite rational expressions.

Represent and solve problems involving addition and subtraction.

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

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

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

Use the four operations with whole numbers to solve problems.

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

Gain familiarity with factors and multiples.

Represent and solve problems involving multiplication and division.

Solve systems of equations.

Write and interpret numerical expressions.

Use polynomial identities to solve problems.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Write expressions in equivalent forms to solve problems.

Solve equations and inequalities in one variable.

Work with addition and subtraction equations.

Represent and analyze quantitative relationships between dependent and independent variables.

Analyze patterns and relationships.

Use properties of operations to generate equivalent expressions.

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

Create equations that describe numbers or relationships

Generate and analyze patterns.

Multiply and divide within 100.

Add and subtract within 20.

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

Perform arithmetic operations on polynomials.

Reason about and solve one-variable equations and inequalities.

Represent and solve equations and inequalities graphically.

Work with radicals and integer exponents.

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

Understand the relationship between zeros and factors of polynomials.

Work with equal groups of objects to gain foundations for multiplication.
problem_activity: Task
There were 7 children at the park. Then 4 more showed up. How many children were at the park all together?
There were 7 children at the park. Some more showed up. Then there were 11 children in all. How many more children came?
There were some children at the park. Four more children showed up. Then there were 11 children at the park. How many children were at the park to start with?


correct_option_index: 3