Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different...
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Transcript of Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different...
![Page 1: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/1.jpg)
Section 1.3Order of Operations
![Page 2: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/2.jpg)
Evaluate 7 + 4 • 3.Is your answer 33 or 19?
You can get 2 different answers depending on which operation you did first. We want everyone to get the same answer so we must follow the order of operations.
![Page 3: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/3.jpg)
Remember the phrase“Please Excuse My Dear Aunt Sally”
or PEMDAS. ORDER OF OPERATIONS1. Parentheses - ( ) or [ ] 2. Exponents or Powers3. Multiply and Divide (from left to right)4. Add and Subtract (from left to right)
![Page 4: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/4.jpg)
Once again, evaluate 7 + 4 3
and use the order of operations.
= 7 + 12 (Multiply.)= 19 (Add.)
![Page 5: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/5.jpg)
Example #1
14 ÷ 7 • 2 - 3
![Page 6: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/6.jpg)
Example #2
3(3 + 7) 2 ÷ 5
![Page 7: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/7.jpg)
Example #3
20 - 3 • 6 + 102 + (6 + 1) • 4
![Page 8: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/8.jpg)
Which of the following represents 112 + 18 - 33 · 5 in simplified form?
1. -3,2362. 43. 1074. 16,996
Answer Now
![Page 9: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/9.jpg)
Simplify16 - 2(10 - 3)
Answer Now
1. 22. -73. 124. 98
![Page 10: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/10.jpg)
Simplify24 – 6 · 4 ÷ 2
Answer Now
1. 722. 363. 124. 0
![Page 11: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/11.jpg)
1. substitute the given numbers for each variable.
2. use order of operations to solve.
Evaluating a Variable Expression
![Page 12: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/12.jpg)
Example # 4
n + (13 - n) 5 for n = 8
![Page 13: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/13.jpg)
Example # 5
8y - 3x2 + 2n
for x = 5, y = 2, n =3
![Page 14: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/14.jpg)
What is the value of -10 – 4x if x = -13?
Answer Now
1. -622. -423. 424. 52
![Page 15: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/15.jpg)
What is the value of 5k3, k = -4?
Answer Now
1. -80002. -3203. -604. 320
![Page 16: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/16.jpg)
What is the value ofif n = -8, m = 4, and t = 2 ?
Answer Now
tmn2
1. 102. -103. -64. 6
![Page 17: Section 1.3 Order of Operations. Evaluate 7 + 4 3. Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.](https://reader036.fdocuments.us/reader036/viewer/2022082419/5a4d1b107f8b9ab05998eedb/html5/thumbnails/17.jpg)
Open your textbookPage 19
#20-26 even