Do Now Directions

1. Do Now Directions • Working alonefit the triangle tiles together so that the numbers on the faces that are touching add up to the same total. Ex: 8 + 1 and 7 + 2 both add up to 9 & 4 + 1 and 3 + 2 both add up to 5. You must use all the tiles. Your completed triangle will resemble the picture below.

2. Students will be able to:1) use the order of operations to solve problems with a 90% accuracy and 2) use order of operations to evaluate algebraic expressions. Objective:

3. Reinforcement of Standard 7AF1.2 Use the correct order of operations to evaluate algebraic expressions such as 3(2x + 5)2. (CAHSEE)

5. Example 1 2[5 + (-30 ÷ 6)²]

6. Example 2 Evaluate 4[12 ÷ (6 – 2)]2.

7. Example 3

8. Example 4 Evaluate 48 ÷ 23 ● 3 + 5.

9. Example 5 Evaluate 2(x2– y) + z2 if x = 4, y = 3, and z = 2.

10. Example 6 Evaluate 3a- 23 ÷ b if a = 7, and b = 4.

11. Example 7 Evaluate 4c – 2d ÷ c if c = 2, and d = 5.

12. Example 8 Evaluate d + 6c ÷ 4 if c = 2, and d = 5.

13. Now You Try

14. Evaluate (8 – 3) ● 3(3 + 2)

15. Evaluate 2(4 + 7) ● (9 – 5) • A • B • C • D

16. Evaluate 3[5 – 2 ● 2]2. • A • B • C • D

17. A • B • C • D

18. Evaluate x3– y2 + z if x = 3, y = 2, and z = 5. • A • B • C • D

19. Evaluate c4– d · 2 if c = 2, and d = 5. • A • B • C • D

20. Evaluate 5x+ 32 ÷ p if x = 2, and p = 3. • A • B • C • D

21. Exit Slip Evaluate each expression. Show Every step. 1) 5 + 2(9 – 1) 2) 3) 2x² + 3y, if x = 3 and y = 5 4) a² - (b + c) if a= 8, b= 17, and c = 21 • A • B • C • D

22. Bonus Complete on the back of your paper. 5) Eric Cartman simplified the expression below. Did he simplify it correctly? Explain. 10(3 + 6)2 10(9)2 902 8,100 • A • B • C • D