1. Chapter 6; Lesson 1 Solving 1-step Addition and Subtraction Equations Course 2 Mathematics Mr. Cline Laveen Campus

2. Objective: I can solve addition and subtraction equations.

3. Essential Question: What are two methods for solving a real-world problem that can be represented by an equation?

4. Subtraction Property of Equality: Two sides of an equation remain equal when you subtract the same number from each side.

5. Example 1:

6. Example 2:

7. Got It? A

8. Got It? B

9. Got It? C

10. Example 3:

11. Got It? D

12. Addition Property of Equality: Two sides of an equation remain equal when you add the same number to each side.

13. Example 4:

14. Got It? E

15. Got It? F

16. Got It? G

17. Example 5: A pair of shoes costs$25. This is $14 less than the cost of a pair of jeans. Find the cost of the jeans.

18. Got It? H The average lifespan of a tiger is 17 years. This is 3 years less than the average lifespan of a lion. Write and solve an equation to find the average lifespan of a lion.