Download presentation

1
**Using Grouping Symbols**

EXAMPLE 2 Using Grouping Symbols a. (14 + 6) 8 = Add inside parentheses first. = 160 Then multiply. b. 9 8 4 + 8 = 72 4 + 8 Evaluate numerator. 12 = 72 Evaluate denominator. = 6 Divide.

2
**Using Grouping Symbols**

EXAMPLE 2 Using Grouping Symbols c [63 ( )] = [ ] Divide inside the innermost set of grouping symbols. = Divide inside brackets. =5 Divide.

3
**The total cost of the visit is $91.50.**

EXAMPLE 3 Using a Verbal Model To find the total cost of the visit to the aquarium described on the previous page, you can use a verbal model to write and evaluate an expression. = Substitute values. = Multiply first. = 91.50 Then add. ANSWER The total cost of the visit is $91.50.

4
**Evaluate the expression.**

GUIDED PRACTICE for Examples 2 and 3 Evaluate the expression. (9 – 4) = (5) Subtract 4 from 9 . = Divide . = 7

5
**Evaluate the expression.**

GUIDED PRACTICE for Examples 2 and 3 Evaluate the expression. [(11–1) ] = 3 [(10) 5] Subtract 1 from 11 . Divide inside the innermost set of grouping symbols. = 3 2 = 6 Multiply.

6
**Evaluate the expression.**

GUIDED PRACTICE for Examples 2 and 3 Evaluate the expression. 6. 45+19 2 8 64 = 2 8 Add 45 and 19 . 64 = 16 Multiply 2 by 8 . = 4 Divide .

7
**The total cost of the visit is $1110.**

GUIDED PRACTICE for Examples 2 and 3 7. What If? Suppose 50 students go to the aquarium and movie in Example 3. It costs $35 to park their school bus. Use a verbal model to write and evaluate an expression for the total cost of their visit. = Substitute values. = Multiply first. = 1110 Then add. ANSWER The total cost of the visit is $1110.

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google