Interpreting Negative Numbers
Adding and Subtracting Rational Numbers

Lesson 2
Changing Temperatures 
Lesson 3
Changing Elevation 
Lesson 4
Money and Debts 
Lesson 5
Representing Subtraction 
Lesson 6
Subtracting Rational Numbers 
Lesson 7
Adding and Subtracting to Solve Problems
Multiplying and Dividing Rational Numbers

Lesson 8
Position, Speed, and Direction 
Lesson 9
Multiplying Rational Numbers 
Lesson 10
Multiply! 
Lesson 11
Dividing Rational Numbers 
Lesson 12
Negative Rates