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

Solve systems of equations.

Represent and solve problems involving multiplication and division.

Analyze patterns and relationships.

Use properties of operations to generate equivalent expressions.

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

Add and subtract within 20.

Represent and solve problems involving addition and subtraction.

Represent and solve equations and inequalities graphically.

Perform arithmetic operations on polynomials.

Solve equations and inequalities in one variable.

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

Write expressions in equivalent forms to solve problems.

Interpret the structure of expressions.

Create equations that describe numbers or relationships

Use the four operations with whole numbers to solve problems.

Gain familiarity with factors and multiples.

Generate and analyze patterns.

Work with addition and subtraction equations.

Reason about and solve one-variable equations and inequalities.

Represent and analyze quantitative relationships between dependent and independent variables.

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

Work with radicals and integer exponents.

Write and interpret numerical expressions.

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Multiply and divide within 100.

Rewrite rational expressions.

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

Understand the relationship between zeros and factors of polynomials.

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

Use polynomial identities to solve problems.

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

Understand the connections between proportional relationships, lines, and linear equations.
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: 16