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Math · Grade 7 Math · Unit 5
Unit 5: Rational Number Arithmetic
Students perform operations on rational numbers, which are all numbers that can be written as a positive or negative fraction.
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Unit
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Concept
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Practice
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What this unit covers
A Adding and Subtracting Rational Numbers · 7 lessons
Goals
- Apply addition and subtraction of signed numbers to represent situations and solve problems.
- Calculate the sum or difference of two rational numbers.
Lessons
- Interpreting Negative Numbers
- Changing Temperatures
- Changing Elevation
- Money and Debts
- Representing Subtraction
- Finding Differences
- Adding and Subtracting to Solve Problems
B Multiplying and Dividing Rational Numbers · 5 lessons
Goals
- Apply multiplication and division of signed numbers to represent situations and solve problems.
- Calculate the product or quotient of two rational numbers.
Lessons
- Multiplying Rational Numbers (Part 1)
- Multiplying Rational Numbers (Part 2)
- Multiply! (Optional)
- Dividing Rational Numbers
- Negative Rates
C Four Operations with Rational Numbers · 4 lessons
Goals
- Apply the four operations with rational numbers to solve problems.
- Solve an equation of the form px + q = r or p(x + q) = r, where p, q, and r are rational numbers.
- Write an equation to represent a situation involving rational numbers.
Lessons
- Expressions with Rational Numbers
- Solving Problems with Rational Numbers
- Solving Equations with Rational Numbers
- Representing Contexts with Equations
D Let’s Put It to Work · 1 lesson
Lessons
- The Stock Market
Helpful to know first
The curriculum says this unit builds on these.
Adapted from the Illustrative Mathematics curriculum (v.360), licensed CC BY-NC 4.0. © Illustrative Mathematics.