options: Write expressions in equivalent forms to solve problems.

Represent and solve problems involving addition and subtraction.

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

Use polynomial identities to solve problems.

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

Work with radicals and integer exponents.

Solve equations and inequalities in one variable.

Rewrite rational expressions.

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

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

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

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

Interpret the structure of expressions.

Represent and analyze quantitative relationships between dependent and independent variables.

Reason about and solve one-variable equations and inequalities.

Add and subtract within 20.

Represent and solve equations and inequalities graphically.

Represent and solve problems involving multiplication and division.

Generate and analyze patterns.

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.

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

Write and interpret numerical expressions.

Perform arithmetic operations on polynomials.

Solve systems of equations.

Use the four operations with whole numbers to solve problems.

Multiply and divide within 100.

Gain familiarity with factors and multiples.

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Understand the relationship between zeros and factors of polynomials.

Work with addition and subtraction equations.

Create equations that describe numbers or relationships
problem_activity: Rishi is trying to find the total number of clouds in the following array.
[IMG]
Rishi says "I know 3 × 9 = 27, so I can use that to help me solve."
a.   Mark the array above to show how Rishi is thinking about it.
b.   Use the fact that
$$3\times9=27$$
to find the total number of clouds in the array.


correct_option_index: 9

30