Follow a temperature change
Represent increases and decreases with signed numbers.
Open lesson 1Reason with Signed Changes
Combine, multiply, divide, and solve for signed changes in supplied situations.
Before you begin
- Locate negative numbers relative to zero.
- Use whole-number multiplication, division, and equality.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Multiply Signed Changes
Apply multiplication signs and interpret repeated changes.
Open lesson 2Divide a Signed Total
Find a signed per-interval change and check by multiplication.
Open lesson 3Solve for an Unknown Number of Changes
Use inverse operations to solve a signed two-step equation.
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.