7.NS.3 – Solve real-world and mathematical problems involving the four operations with rational numbers.^{1}

**Internet Resources (Videos, Websites, etc.)**

Illustrative Mathematics Project

Khan Academy

Learn Zillion

- Use addition and subtraction to solve real-world problems involving decimals
- Use addition and subtraction to solve real-world problems involving fractions
- Use addition and multiplication to solve real-world problems with rational numbers
- Use addition and division to solve real-world problems with rational numbers
- Simplify expressions with order of operations

NCTM Illuminations

- Big Math and Fries
- Classic Middle-Grades Problems for the Classroom
- Creating an Effective Defensible Space
- Elevator Integers
- Flipping for Integers
- Fun with Baseball Stats
- Grid and Percent It
- Ideas With Food
- Learning about Multiplication Using Dynamic Sketches of an Area Model
- Magic Squares
- Multiplying Integers Using Videotape
- Percent Slope Tool
- Power Up
- Real Estate Tycoon
- Shopping Mall Math
- Shops at the Mall
- Too Big or Too Small?
- Volt Meter

- Operations with decimals: Add and subtract decimals
- Operations with decimals: Add and subtract decimals: word problems
- Operations with decimals: Multiply decimals
- Operations with decimals: Multiply decimals and whole numbers: word problems
- Operations with decimals: Divide decimals
- Operations with decimals: Divide decimals by whole numbers: word problems
- Operations with decimals: Add, subtract, multiply, and divide decimals: word problems
- Operations with integers: Add and subtract integers
- Operations with integers: Complete addition and subtraction sentences with integers
- Operations with integers: Add and subtract integers: word problems
- Operations with integers: Integer multiplication and division rules
- Operations with integers: Multiply and divide integers
- Operations with integers: Complete multiplication and division sentences with integers
- Operations with fractions: Add and subtract fractions
- Operations with fractions: Add and subtract fractions: word problems
- Operations with fractions: Add and subtract mixed numbers
- Operations with fractions: Add and subtract mixed numbers: word problems
- Operations with fractions: Inequalities with addition & subtraction of fractions & mixed numbers
- Operations with fractions: Multiply fractions
- Operations with fractions: Multiply fractions and whole numbers
- Operations with fractions: Multiply mixed numbers
- Operations with fractions: Multiply fractions and mixed numbers: word problems
- Operations with fractions: Divide fractions
- Operations with fractions: Divide mixed numbers
- Operations with fractions: Divide fractions and mixed numbers: word problems
- Operations with fractions: Add, subtract, multiply, & divide fractions & mixed numbers: word problems
- Rational numbers: Add and subtract rational numbers
- Rational numbers: Multiply and divide rational numbers
- Consumer math: Add, subtract, multiply, and divide money amounts: word problems
- Consumer math: Price lists

Science Net Links

Texas Instruments

Math Nspired: Addition and Subtraction of Rational Numbers: Part 2 This lesson involves representing addition and subtraction of signed mixed numbers on a number line for a randomly generated target sum or difference. |

Math Nspired: Additon and Subtraction of Rational Numbers: Part 1 This lesson involves using pattern blocks to model addition and subtraction of positive mixed numbers for randomly generated numeric expressions. |

Math Nspired: Bathroom Flooring This lesson involves students tiling the floors of three bathrooms with provided tiles and determining the cost of the floor based on the unit price of each tile. |

Math Nspired: Multiplication and Division of Rational Numbers This lesson involves using an interactive area model to solve multiplication and division problems with positive decimals and mixed numbers. |

Math Nspired: Order and Inequalities: Multiplication by Negative Numbers Investigate the effect of multiplying the numbers on a number line by a negative number. Device: TI-Nspire(TM) CAS, TI-Nspire(TM) |

Math Nspired: Solving Percent Problems This lesson involves solving word problems dealing with percents by using visual and numerical representations of percents. Product: TI-Nspire(TM), TI-Nspire(TM) CAS |

Math Nspired: Words for Algebra This lesson involves starting with the context of a word problem and then examining it from several different perspectives in an effort to build expressions and equations that model the problem. Product: TI-Nspire(TM), TI-Nspire(TM) CAS |

XPMath Game

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