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Unit 5: Rational number arithmetic

Lesson 1: Interpreting negative numbers

Learn
Missing numbers on the number line examples
(Opens a modal)
Comparing rational numbers
(Opens a modal)
Practice
Missing numbers on the number lineGet 3 of 4 questions to level up!
Order rational numbersGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 200 Mastery points

Lesson 2: Changing temperatures

Learn
Adding negative numbers example
(Opens a modal)
Adding numbers with different signs
(Opens a modal)
Adding negative numbers review
(Opens a modal)
Practice
Adding negative numbersGet 5 of 7 questions to level up!

Lesson 3: Changing elevation

Learn
Adding negative numbers on the number line
(Opens a modal)
Number equations & number lines
(Opens a modal)
Adding fractions with different signs
(Opens a modal)
Practice
Signs of sumsGet 5 of 7 questions to level up!
Adding negative numbers on the number lineGet 5 of 7 questions to level up!
Number equations & number linesGet 3 of 4 questions to level up!

Lesson 4: Money and debts

Learn
Rational number word problem: checking account
(Opens a modal)

Lesson 5: Representing subtraction

Learn
Adding & subtracting negative numbers
(Opens a modal)
Subtracting negative numbers review
(Opens a modal)
Practice
Understand subtraction as adding the oppositeGet 3 of 4 questions to level up!
Subtracting negative numbersGet 5 of 7 questions to level up!

Lesson 6: Subtracting rational numbers

Learn
Interpreting numeric expressions example
(Opens a modal)
Absolute value as distance between numbers
(Opens a modal)
Practice
Interpret negative number addition and subtraction expressionsGet 3 of 4 questions to level up!
Adding & subtracting negative fractionsGet 5 of 7 questions to level up!
Absolute value to find distanceGet 5 of 7 questions to level up!
Adding & subtracting rational numbersGet 3 of 4 questions to level up!

Lessons 1-6: Extra practice

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No videos or articles available in this lesson
Practice
Adding & subtracting negative numbersGet 5 of 7 questions to level up!
Addition & subtraction: find the missing valueGet 3 of 4 questions to level up!
Equivalent expressions with negative numbersGet 3 of 4 questions to level up!

Lesson 7: Adding and subtracting to solve problems

Learn
Interpreting negative number statements
(Opens a modal)
Negative number word problem: Alaska
(Opens a modal)
Practice
Interpreting negative number statementsGet 3 of 4 questions to level up!
Negative number addition and subtraction: word problemsGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 1500 Mastery points

Lesson 9: Multiplying rational numbers

Learn
Why a negative times a negative makes sense
(Opens a modal)
Why a negative times a negative is a positive
(Opens a modal)
Multiplying negative numbers review
(Opens a modal)
Practice
Multiplying negative numbersGet 3 of 4 questions to level up!

Lesson 10: Multiply!

Learn
Multiplying positive and negative fractions
(Opens a modal)
Practice
Multiplying positive and negative fractionsGet 3 of 4 questions to level up!

Lesson 11: Dividing rational numbers

Learn
Dividing positive and negative numbers
(Opens a modal)
Dividing negative numbers review
(Opens a modal)
Dividing negative fractions
(Opens a modal)
Practice
Dividing negative numbersGet 3 of 4 questions to level up!
Dividing positive and negative fractionsGet 3 of 4 questions to level up!
Dividing mixed numbers with negativesGet 3 of 4 questions to level up!

Lesson 12: Negative rates

Learn
Interpreting multiplication & division of negative numbers
(Opens a modal)
Practice
Multiplying & dividing negative numbers word problemsGet 3 of 4 questions to level up!

Quiz 3

Level up on the above skills and collect up to 600 Mastery points

Lesson 13: Expressions with rational numbers

Learn
Substitution with negative numbers
(Opens a modal)
Ordering expressions
(Opens a modal)
Negative signs in fractions
(Opens a modal)
Expressions with rational numbers
(Opens a modal)
Practice
Substitution with negative numbersGet 5 of 7 questions to level up!
Ordering negative number expressionsGet 3 of 4 questions to level up!
Negative signs in fractionsGet 3 of 4 questions to level up!
Signs of expressionsGet 5 of 7 questions to level up!

Lesson 14: Solving problems with rational numbers

Learn
Intro to order of operations
(Opens a modal)
Rational number word problem: cab
(Opens a modal)
Practice
Order of operations with negative numbersGet 5 of 7 questions to level up!
Rational number word problemsGet 3 of 4 questions to level up!

Quiz 4

Level up on the above skills and collect up to 600 Mastery points

Lesson 15: Solving equations with rational numbers

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No videos or articles available in this lesson
Practice
One-step equations with negatives (add & subtract)Get 5 of 7 questions to level up!
One-step equations with negatives (multiply & divide)Get 5 of 7 questions to level up!

Quiz 5

Level up on the above skills and collect up to 200 Mastery points
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Unit test

Level up on all the skills in this unit and collect up to 3100 Mastery points!