1. Simplifying Numerical Expressions
Reteach Review

2. Think - Pair - Share
What is the first step in solving the following? ÷ 3 + 8 2

3. Objective
I can create and simplify numerical expressions.

4. Essential Questions
What is the Order of Operations? Why is it important to apply the order of operations when solving numerical expressions?
What is an exponent? How do you calculate a value containing an exponent?

5. Solve 8 3
512

6. Which is the same as 5 ? 4
5 • 4
4 • 4 • 4 • 4 • 4
4 • 5
5 • 5 • 5 • 5

7. Solve the following expression
(3-1) + (4+2) 3 2 44

8. Evaluate the following expression and tell whether it’s true or false.
63 ÷ =
False

9. Which expression has a value of 5
45 ÷
2 x (18-42) + 3
37 - 4(3+5)
32 - (7+2) + 4

10. Write an equivalent expression for 3 • 3 • 3 •334

11. What would make this equation true?
9y = y 9
If y is 0

12. Solve for x
x = 5 - 3 3 2
116

13. Write an equivalent expression for 73
7 • 7 • 7

14. Write an equivalent expression for (4-1) • (4-1) • (4-1) - (3+2) • (3+2)
(4-1)3 - (3+2)2

15. What would make this equation false?
5n = n 5

16. Solve
(5 - 4) ÷ (4 - 9) 2 2 3

17. How would you solve the following expression?
Closure
How would you solve the following expression?
9 + 4 • 3 2