4.NF.B.3c

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- 4.NF.B.3aUnderstand addition and subtraction of fractions as joining and separating parts referring to the same whole.
- 4.NF.B.3bDecompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.
- 4.NF.B.3cAdd and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.
- 4.NF.B.3dSolve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

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## 4.NF.B.3c

## Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

24 Lesson(s)

### Modeling Adding and Subtracting Mixed Numbers

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### All Hands In for Improper Fractions

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Rocking Operations with Fractions - Assessment

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Inquiry with Mixed Numbers - How far did she run?

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Tic Tac Toe - Subtracting Mixed Numbers

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

Big Idea:

#### In this lesson students work with a partner to play a tic tac toe game in order to practice the skill of subtracting mixed numbers. Students can use visual fraction model and number strategies in order to subtract mixed numbers.

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Resources
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Reflections
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### Cats and Strawberries - Inquiry with Subtracting Mixed Numbers

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Mixed Number Mystery

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Adding Mixed Numbers

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Measuring & Comparing the Lengths of Objects

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### Fabulous Fraction Review with Computers

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Shopping and Pondering Pounds and Ounces

4th Grade Math »
Unit: Measurment

4th Grade Math »
Unit: Measurment

Common Core Math

### Kindergarten

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### HS Number & Quantity

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### First grade

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### Third Grade

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Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School