options: Represent and solve problems involving multiplication and division.

Represent and solve problems involving addition and subtraction.

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

Perform arithmetic operations on polynomials.

Represent and solve equations and inequalities graphically.

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

Apply and extend previous understandings of arithmetic to algebraic expressions.

Interpret the structure of expressions.

Solve systems of equations.

Write expressions in equivalent forms to solve problems.

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

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

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

Generate and analyze patterns.

Understand the relationship between zeros and factors of polynomials.

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

Add and subtract within 20.

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

Represent and analyze quantitative relationships between dependent and independent variables.

Create equations that describe numbers or relationships

Use the four operations with whole numbers to solve problems.

Write and interpret numerical expressions.

Reason about and solve one-variable equations and inequalities.

Solve equations and inequalities in one variable.

Work with addition and subtraction equations.

Work with radicals and integer exponents.

Multiply and divide within 100.

Rewrite rational expressions.

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

Use properties of operations to generate equivalent expressions.

Use polynomial identities to solve problems.

Analyze patterns and relationships.

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

Gain familiarity with factors and multiples.
problem_activity: Task
A water well drilling rig has dug to a height of –60 feet after one full day of continuous use.
Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?
If the rig has been running constantly and is currently at a height of –143.6 feet, for how long has the rig been running?


correct_option_index: 10