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

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

Work with radicals and integer exponents.

Write expressions in equivalent forms to solve problems.

Generate and analyze patterns.

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

Solve equations and inequalities in one variable.

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

Understand the relationship between zeros and factors of polynomials.

Add and subtract within 20.

Represent and solve equations and inequalities graphically.

Interpret the structure of expressions.

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

Solve systems of equations.

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

Write and interpret numerical expressions.

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.

Apply and extend previous understandings of arithmetic to algebraic expressions.

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.

Represent and solve problems involving multiplication and division.

Analyze patterns and relationships.

Rewrite rational expressions.

Use properties of operations to generate equivalent expressions.

Represent and analyze quantitative relationships between dependent and independent variables.

Gain familiarity with factors and multiples.

Reason about and solve one-variable equations and inequalities.

Use polynomial identities to solve problems.

Multiply and divide within 100.

Perform arithmetic operations on polynomials.

Work with addition and subtraction equations.

Create equations that describe numbers or relationships

Represent and solve problems involving addition and subtraction.
problem_activity: Task
Decide which of the following equations best represents each situation.
| $$x + 2= 10$$ | $$x=10+2$$ | $$2\cdot10=x$$ |
|---------------|------------|----------------|
|  $$x+10=2$$   | $$10x=2$$  |   $$2x=10$$    |
After Lou poured 2 liters of water into a large jug, the jug contained 10 liters of water. How many liters were in the jug to start?
Clara ran 10 miles, which was twice as far as Nina ran. How far did Nina run?


correct_option_index: 27