Warm-Up Exercises

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# Warm-Up Exercises - PowerPoint PPT Presentation

1. 597. +. 231. 2. –. 1348. 649. 3. 540. 5. ÷. 4. 6437. 32. ÷. Warm-Up Exercises. 1.2 Use Order of Operations. Find the sum or difference. Find the quotient. 1. 597. +. 231. 828. ANSWER. 2. 699. ANSWER. –. 1348. 649. 3. 108. ANSWER. 540. 5. ÷. 4. 201 R5.

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## Warm-Up Exercises

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1. 1. 597 + 231 2. – 1348 649 3. 540 5 ÷ 4. 6437 32 ÷ Warm-Up Exercises 1.2 Use Order of Operations Find the sum or difference. Find the quotient.

2. 1. 597 + 231 828 ANSWER 2. 699 ANSWER – 1348 649 3. 108 ANSWER 540 5 ÷ 4. 201 R5 ANSWER 6437 32 ÷ Warm-Up Exercises 1.2 Use Order of Operations Find the sum or difference. Find the quotient.

3. Lesson 1.2 1.2 Use Order of Operations ORDER OF OPERATIONS Numerical expressions contain numbers, operations, and sometimes grouping symbols. Grouping symbols – parenthesis ( ), brackets[ ], fraction bar ½. These must be performed first. Order of operations – 1. Parenthesis 2. Exponent 3. Multiplication and Division - left to right 4. Addition and Subtraction – left to right Warm-Up Exercises

4. b.  ÷ 3 8 2 c. –  + 9 2 4 3 Example 1 Using the Order of Operations a. – 24 3 + 7

5. Practice for Example 1 6. –  15 3 4 2. – 8 4 + 7 3.  ÷ 3 12 2 4.  ÷ 3 8 2 5. 10 5 + 5 ÷ Evaluate the expression. 1. – + 6 2 5

6. b. 5 23 • Example 2 Using Order of Operations with Powers a. – 10 32

7. Practice for Example 2 7.  3 42 8. – 24 6 9.  – 2 33 14 Evaluate the expression.

8. b. 3 + 1 – 14 2 Example 3 Using Grouping Symbols a. ( ) – ÷ 15 4 1

9. Practice for Example 3 18 11. – 17 11 1 + 8 12. 2 + 1 Evaluate the expression. 10. ( ) ÷ 16 + 2 6

10. 4 50 2 35 + • • Example 4 Using Order of Operations Student musicians are having a benefit concert. Admission is \$4 per adult and \$2 per student. Suppose 50 adults and 35 students are admitted. Evaluate to find the total amount paid for admissions.

11. Practice for Example 4 14. A ski resort charges \$40 per adult and \$30 per student for a one-day pass. Evaluate to find the cost for 2 adult and 4 student one-day passes. 30 2 40 4 + • • 13. You buy 4 notebooks for \$2 each, 5 mechanical pencils for \$3 each, and 2 binders for \$5 each. Evaluate to find the total cost. 4 2 5 3 2 5 + + • • •

12. Lesson 1.2 1.2 Use Order of Operations Warm-Up Exercises Homework 1.2: workbook; p.6/1-37