options: 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.

Understand the relationship between zeros and factors of polynomials.

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

Represent and solve equations and inequalities graphically.

Represent and solve problems involving multiplication and division.

Write expressions in equivalent forms to solve problems.

Use properties of operations to generate equivalent expressions.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Work with addition and subtraction equations.

Solve systems of equations.

Represent and solve problems involving addition and subtraction.

Work with radicals and integer exponents.

Perform arithmetic operations on polynomials.

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

Interpret the structure of expressions.

Gain familiarity with factors and multiples.

Rewrite rational expressions.

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

Add and subtract within 20.

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

Analyze patterns and relationships.

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

Represent and analyze quantitative relationships between dependent and independent variables.

Use the four operations with whole numbers to solve problems.

Write and interpret numerical expressions.

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

Generate and analyze patterns.

Reason about and solve one-variable equations and inequalities.

Solve equations and inequalities in one variable.

Create equations that describe numbers or relationships

Use polynomial identities to solve problems.

Multiply and divide within 100.

Understand and apply properties of operations and the relationship between addition and subtraction.
problem_activity: Stage 2: Subtract within 10
Required Preparation
Materials to Gather
Number cards 0–10
Materials to Copy
Blackline Masters
Check It Off Stage 2 Recording Sheet

Narrative
Students take turns picking two number cards (0–10) to make and find the value of a subtraction expression. Students check off the number that represents the value of the difference (0–10) and then write the subtraction expression on the recording sheet.
Variation:
Students can choose whether to add or subtract after picking two number cards.


correct_option_index: 0

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