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

Represent and solve problems involving multiplication and division.

Represent and solve equations and inequalities graphically.

Create equations that describe numbers or relationships

Work with radicals and integer exponents.

Perform arithmetic operations on polynomials.

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

Work with addition and subtraction equations.

Rewrite rational expressions.

Reason about and solve one-variable equations and inequalities.

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

Solve systems of equations.

Add and subtract within 20.

Represent and analyze quantitative relationships between dependent and independent variables.

Analyze patterns and relationships.

Gain familiarity with factors and multiples.

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

Use the four operations with whole numbers to solve problems.

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

Represent and solve problems involving addition and subtraction.

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

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

Use properties of operations to generate equivalent expressions.

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

Use polynomial identities to solve problems.

Write expressions in equivalent forms to solve problems.

Generate and analyze patterns.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Solve equations and inequalities in one variable.

Write and interpret numerical expressions.

Interpret the structure of expressions.

Multiply and divide within 100.

Understand the relationship between zeros and factors of polynomials.

Analyze and solve linear equations and pairs of simultaneous linear equations.
problem_activity: Stage 2: Subtract from 20
Required Preparation
Materials to Gather
Number cards 0–10
Materials to Copy
Blackline Masters
How Close? Stage 2 Recording Sheet

Narrative
Before playing, students remove the cards that show the number 10 and set them aside.
Each student picks 4 cards and chooses 2 or 3 to subtract from 20 to get close to 0. The student whose difference is closest to 0 wins a point for the round. Students pick new cards so that they have 4 cards in their hand and then start the next round.


correct_option_index: 12