1. Inverse operations Objective: 1. Learn to use inverse operations.

2. 4.1 Inverse operations Suppose that you ride your bike north for 4 miles, and then decide you need to return home, where you started. What would you have to do? _____________________________.Suppose that you ride your bike north for 4 miles, and then decide you need to return home, where you started. What would you have to do? _____________________________. Riding north and riding south are inverse actions because theyeach other.Riding north and riding south are inverse actions because they undo each other.

3. If you add 5 to a number and you want to return to the original number, you started with, you would subtract 5. Addition and subtraction are inverse operations because they “undo”each other. Undo each action. Find the inverse operation. 1.Add 3: ____________ 2.Go up the stairs: _________________________ 3.Drive 5 miles east: ______________________ 4. Turn off the lights: ______________________ 5. Talk in class: ___________________________ 6. Divide by 65: ___________________________

4. Homework: Write the inverse operation of each exercise. 1.Add 7 ___________________ 2. Divide by 4 ______________ 3. Multiply by 8 _____________ 4. Go up the stairs _____________ 5. Listen to my teacher _________________________________ 6.Misbehave in class ______________________________________ 7. Subtract 4 ___________________ 8. Multiply 3 ___________________ 9. Get a bad grade in Math ____________________________________ 10. Not try my best in school _______________________________________