options: Multiply and divide within 100.

Represent and solve problems involving multiplication and division.

Generate and analyze patterns.

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

Interpret the structure of expressions.

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

Solve systems of equations.

Represent and analyze quantitative relationships between dependent and independent variables.

Analyze patterns and relationships.

Rewrite rational expressions.

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

Solve equations and inequalities in one variable.

Understand the relationship between zeros and factors of polynomials.

Write and interpret numerical expressions.

Write expressions in equivalent forms to solve problems.

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

Represent and solve problems involving addition and subtraction.

Use properties of operations to generate equivalent expressions.

Use polynomial identities to solve problems.

Create equations that describe numbers or relationships

Perform arithmetic operations on polynomials.

Add and subtract within 20.

Use the four operations with whole numbers to solve problems.

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

Gain familiarity with factors and multiples.

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

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

Work with addition and subtraction equations.

Represent and solve equations and inequalities graphically.

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

Work with radicals and integer exponents.

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Reason about and solve one-variable equations and inequalities.
problem_activity: Problem 1
Sondra says
$$3\times223=696$$
. Use what you know about the product of two odd numbers to explain why Sondra is wrong.
Problem 2
Explain two ways you could find the next number in the highlighted diagonal below. You don’t need to actually compute it!
| **            ×           **  | **            1           ** | **            2           ** | **            3           ** | **            4           ** | **            5           ** | **            6           ** | **            7           ** | **            8           ** | **            9           ** | **            10           ** |   |
|-------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------------------|-------------------------------|---|
| **            1           **  |              1               |              2               |              3               |              4               |              5               |              6               |              7               |              8               |              9               |              10               |   |
| **            2           **  |              2               |              4               |              6               |              8               |              10              |              12              |              14              |              16              |              18              |              20               |   |
| **            3           **  |              3               |              6               |              9               |              12              |              15              |              18              |              21              |              24              |              27              |              30               |   |
| **            4           **  |              4               |              8               |              12              |              16              |              20              |              24              |              28              |              32              |              36              |              40               |   |
| **            5           **  |              5               |              10              |              15              |              20              |              25              |              30              |              35              |              40              |              45              |              50               |   |
| **            6           **  |              6               |              12              |              18              |              24              |              30              |              36              |              42              |              48              |              54              |              60               |   |
| **            7           **  |              7               |              14              |              21              |              28              |              35              |              42              |              49              |              56              |              63              |              70               |   |
| **            8           **  |              8               |              16              |              24              |              32              |              40              |              48              |              56              |              64              |              72              |              80               |   |
| **            9           **  |              9               |              18              |              27              |              36              |              45              |              54              |              63              |              72              |              81              |              90               |   |
| **            10           ** |              10              |              20              |              30              |              40              |              50              |              60              |              70              |              80              |              90              |              100              |   |
|                               |                              |                              |                              |                              |                              |                              |                              |                              |                              |                               |   |


correct_option_index: 29