options: Represent and solve problems involving addition and subtraction.

Analyze patterns and relationships.

Represent and solve problems involving multiplication and division.

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

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

Generate and analyze patterns.

Solve systems of equations.

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

Work with radicals and integer exponents.

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

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Perform arithmetic operations on polynomials.

Gain familiarity with factors and multiples.

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

Write and interpret numerical expressions.

Multiply and divide within 100.

Represent and solve equations and inequalities graphically.

Create equations that describe numbers or relationships

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

Add and subtract within 20.

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

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

Reason about and solve one-variable equations and inequalities.

Work with addition and subtraction equations.

Rewrite rational expressions.

Interpret the structure of expressions.

Use polynomial identities to solve problems.

Understand the relationship between zeros and factors of polynomials.

Solve equations and inequalities in one variable.

Use properties of operations to generate equivalent expressions.

Use the four operations with whole numbers to solve problems.

Write expressions in equivalent forms to solve problems.

Represent and analyze quantitative relationships between dependent and independent variables.
problem_activity: Task
The table below shows all the products of pairs of numbers between 1 and 9.
[IMG]
Which numbers appear only once in the table of products?   Where are these numbers located in the table?  Why?
Which numbers appear the most frequently in the table?  Why?
Which numbers between 10 and 20 do  not  appear in the table?  What do these numbers have in common?


correct_option_index: 13