options: Write expressions in equivalent forms to solve problems.

Reason about and solve one-variable equations and inequalities.

Use properties of operations to generate equivalent expressions.

Represent and solve problems involving addition and subtraction.

Rewrite rational expressions.

Work with addition and subtraction equations.

Solve systems of equations.

Solve equations and inequalities in one variable.

Understand the relationship between zeros and factors of polynomials.

Work with radicals and integer exponents.

Add and subtract within 20.

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

Create equations that describe numbers or relationships

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

Multiply and divide within 100.

Generate and analyze patterns.

Represent and solve equations and inequalities graphically.

Interpret the structure of expressions.

Use the four operations with whole numbers to solve problems.

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

Represent and solve problems involving multiplication and division.

Gain familiarity with factors and multiples.

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

Write and interpret numerical expressions.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Analyze patterns and relationships.

Represent and analyze quantitative relationships between dependent and independent variables.

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

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

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

Use polynomial identities to solve problems.

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

Perform arithmetic operations on polynomials.

Understand and apply properties of operations and the relationship between addition and subtraction.
problem_activity: Task
A penny is about $\frac{1}{16}$ of an inch thick.
In 2011 there were approximately 5 billion pennies minted. If all of these pennies were placed in a single stack, how many miles high would that stack be?
In the past 100 years, nearly 500 billion pennies have been minted. If all of these pennies were placed in a single stack, how many miles high would that stack be?
The distance from the moon to the earth is about 239,000 miles. How many pennies would need to be in a stack in order to reach the moon?


correct_option_index: 1

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