## TEKS.2.7C - Represent and solve addition and subtraction word problems where unknowns may be any one of the terms in the problem.

### Displaying 1 - 50 of 163 resources:

Thumbnail Image Title Description Curriculum Nodes

### Definition--Variables, Unknowns, and Constants--Assigning Values to Variables

Definition--Variables, Unknowns, and Constants--Assigning Values to Variables

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Coefficient

What Is a Coefficient?

This is part of a series of definitions that focus on constants, variables, and coefficients. These definition cards can easily be incorporated into a lesson plan.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant

Definition--Variables, Unknowns, and Constants--Constant

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant of Proportionality

Definition--Variables, Unknowns, and Constants--Constant of Proportionality

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant of Variation

Definition--Variables, Unknowns, and Constants--Constant of Variation

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant Term

Definition--Variables, Unknowns, and Constants--Constant Term

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Evaluating an Algebraic Expression

Definition--Variables, Unknowns, and Constants--Evaluating an Algebraic Expression

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Models for Numbers

Definition--Variables, Unknowns, and Constants--Models for Numbers

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Models for Variables

Definition--Variables, Unknowns, and Constants--Models for Variables

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Numerical Expression

Definition--Variables, Unknowns, and Constants--Numerical Expression

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Parameter

Definition--Variables, Unknowns, and Constants--Parameter

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Random Variable

Definition--Variables, Unknowns, and Constants--Random Variable

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Range of a Variable

Definition--Variables, Unknowns, and Constants--Range of a Variable

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Solving for the Unknown

Definition--Variables, Unknowns, and Constants--Solving for the Unknown

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Special Constants

Definition--Variables, Unknowns, and Constants--Special Constants

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Unknown

Definition--Variables, Unknowns, and Constants--Unknown

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Variable

Definition | Variables, Unknowns, and Constants | Variable

This is part of a collection of definitions on the topic of variables and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Variable Expression

Definition--Variables, Unknowns, and Constants--Variable Expression

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Verbal Representations for Unknowns

Definition--Variables, Unknowns, and Constants--Verbal Representations for Unknowns

This is part of a collection of definitions related to variables, unknowns, and constants.

Variables and Unknowns

### Elementary Math Definitions--Addition Subtraction Concepts--Associative Property

Associative Property

Borrowing

Carry Over

### Elementary Math Definitions--Addition Subtraction Concepts--Commutative Property

Commutative Property

Difference

Equals Sign

Even Number

Fact Family

False Equation

Hundreds Place

Minus Sign

Odd Number

Ones Place

Place Value

Plus Sign

Regrouping

Subtracting

Subtraction

### Elementary Math Definitions--Addition Subtraction Concepts--Subtraction Expression

Subtraction Expression

Sum

Tens Place

### Elementary Math Definitions--Addition Subtraction Concepts--Title

This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

True Equation

### Interactive Math Game--DragNDrop--Measures of Central Tendency--Mean

Interactive Math Game--DragNDrop Math--Measures of Central Tendency--Mean

In this drag-and-drop game, have students practice their skills at calculating the mean of a data set.

Data Analysis

### Interactive Word Search Puzzle: Basic Addition and Subtraction Vocabulary

Interactive Word Search Puzzle: Basic Addition and Subtraction Vocabulary

Review key addition and subtraction vocabulary with this interactive word search puzzle.

Addition Expressions and Equations and Subtraction Expressions and Equations

This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elementary

This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an e

### Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property

Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property

This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an ea