options: Apply and extend previous understandings of arithmetic to algebraic expressions.

Write and interpret numerical expressions.

Create equations that describe numbers or relationships

Represent and solve problems involving multiplication and division.

Use properties of operations to generate equivalent expressions.

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

Interpret the structure of expressions.

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

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

Analyze patterns and relationships.

Solve systems of equations.

Solve equations and inequalities in one variable.

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

Represent and solve equations and inequalities graphically.

Represent and analyze quantitative relationships between dependent and independent variables.

Work with addition and subtraction equations.

Reason about and solve one-variable equations and inequalities.

Add and subtract within 20.

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

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

Work with radicals and integer exponents.

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

Use polynomial identities to solve problems.

Multiply and divide within 100.

Rewrite rational expressions.

Write expressions in equivalent forms to solve problems.

Generate and analyze patterns.

Perform arithmetic operations on polynomials.

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

Represent and solve problems involving addition and subtraction.

Use the four operations with whole numbers to solve problems.

Gain familiarity with factors and multiples.

Understand the relationship between zeros and factors of polynomials.

Understand and apply properties of operations and the relationship between addition and subtraction.
problem_activity: Task
An ant has a mass of approximately $4 \times 10^{−3}$ grams and an elephant has a mass of approximately 8 metric tons.
How many ants does it take to have the same mass as an elephant?
An ant is $10^{−1}$ cm long. If you put all these ants from your answer to part (a) in a line (front to back), how long would the line be? Find two cities in the United States that are a similar distance apart to illustrate this length.
Note: 1 kg = 1000 grams, 1 metric ton = 1000 kg, 1m = 100 cm, 1km = 1000 m


correct_option_index: 20