Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.
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Transcript of Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.
![Page 1: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/1.jpg)
Everyday MathGrade 4 – Lesson 3.9
Parentheses in Number Sentences
Copyright © 2010 Kelly Mott
![Page 2: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/2.jpg)
Copyright © 2010 Kelly Mott
Math Boxes Lesson 3.9
Page 69
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Copyright © 2010 Kelly Mott
Math Box 1:
![Page 4: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/4.jpg)
Copyright © 2010 Kelly Mott
Math Box 2:
![Page 5: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/5.jpg)
Copyright © 2010 Kelly Mott
Math Box 3:
![Page 6: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/6.jpg)
Copyright © 2010 Kelly Mott
Math Box 4:
![Page 7: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/7.jpg)
Copyright © 2010 Kelly Mott
Math Box 5:
![Page 8: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/8.jpg)
Everyday MathGrade 4 – Lesson 3.9
Parentheses in Number Sentences
Copyright © 2010 Kelly Mott
![Page 9: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/9.jpg)
PART 1: REVIEW
Copyright © 2010 Kelly Mott
![Page 10: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/10.jpg)
A number sentence is a short way of writing a mathematical expression.
EXAMPLEI could write:eight plus six equals fourteenor I could write it this way:8 + 6 = 14
Number Sentences
Copyright © 2010 Kelly Mott
![Page 11: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/11.jpg)
A number sentence can be TRUE.
EXAMPLE5 x 2 = 10
Number Sentences
Copyright © 2010 Kelly Mott
![Page 12: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/12.jpg)
A number sentence can be FALSE.
EXAMPLE6 - 2 = 6
Number Sentences
Copyright © 2010 Kelly Mott
![Page 13: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/13.jpg)
11 + 8 = 19
Circle:True or False
Is it TRUE or FALSE?
Copyright © 2010 Kelly Mott
157 > 159
Circle:True or False
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17 > 5 x 4
Circle:True or False
Is it TRUE or FALSE?
Copyright © 2010 Kelly Mott
18/9 = 3
Circle:True or False
![Page 15: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/15.jpg)
Let’s try some with our keypads. Tell if each number sentence is TRUE or FALSE.
Number Sentences
Copyright © 2010 Kelly Mott
![Page 16: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/16.jpg)
Unit 3 ReviewMrs. Gregory
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15 + 3 = 28
True
False
0%0%
1.True2.False
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5 * 3 =15
True
False
0%0%
1.True2.False
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46,568 > 5,003,456
True
False
0%0%
1.True2.False
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30 + 2 > 45 -7
True
False
0%0%
1.True2.False
![Page 21: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/21.jpg)
96 + 4 = 100 - 0
True
False
0%0%
1.True2.False
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5 x 7 = 15 +20
True
False
0%0%
1.True2.False
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17 – 8 + 3 = 13
True
False
0%0%
1.True2.False
![Page 24: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/24.jpg)
9 x 6 > 81/9
True
False
0%0%
1.True2.False
![Page 25: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/25.jpg)
57 – 7 < 8 x 7
True
False
0%0%
1.True2.False
![Page 26: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/26.jpg)
PART 2: SOLVE WITH PARENTHESES
Copyright © 2010 Kelly Mott
![Page 27: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/27.jpg)
Some number sentences use PARENTHESES.
EXAMPLE(6 – 2) + 4 = 8
Number Sentences
Copyright © 2010 Kelly Mott
![Page 28: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/28.jpg)
To solve these, you must do what’s in the PARENTHESES first.
(6 – 2) + 4 = 8
Number Sentences
Copyright © 2010 Kelly Mott
![Page 29: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/29.jpg)
You have to follow the ORDER OF OPERATIONS:
1. PARENTHESES2. EXPONENTS3. MULTIPLY and DIVIDE4. ADD or SUBTRACT
Copyright © 2010 Kelly Mott
![Page 30: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/30.jpg)
Click on the link to watch the Brain Pop Video:
http://www.brainpop.com/math/numbersandoperations/orderofoperations/
Copyright © 2010 Kelly Mott
![Page 31: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/31.jpg)
TIP TO REMEMBER: Please Excuse My Dear
Aunt Sally
Copyright © 2010 Kelly Mott
1. PARENTHESES2. EXPONENTS3. MULTIPLY 4. DIVIDE5. ADD 6. SUBTRACT
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A. (28 - 6) + 9 = ______________
B. 28 - (6 + 9) = ______________
Number Sentences
Copyright © 2010 Kelly Mott
![Page 33: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/33.jpg)
C. (10 - 3) x 2 = ______________
D. 10 - (3 x 2) = ______________
Number Sentences
Copyright © 2010 Kelly Mott
![Page 34: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/34.jpg)
E. (15 + 2) x 5 = ______________
F. 15 + (2 x 5) = ______________
Number Sentences
Copyright © 2010 Kelly Mott
![Page 35: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/35.jpg)
G. (4 x 8) - 4 = ______________
H. 4 x (8 - 4) = ______________
Number Sentences
Copyright © 2010 Kelly Mott
![Page 36: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/36.jpg)
PART 3: TRUE or FALSE with PARENTHESES
Copyright © 2010 Kelly Mott
![Page 37: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/37.jpg)
Now let’s try some with parentheses and tell whether they are TRUE or FALSE.
Number Sentences
Copyright © 2010 Kelly Mott
![Page 38: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/38.jpg)
A. (2 x 2) + 10 = 14 True or False
B. 10 = 4 + (1 x 2) True or False
Number Sentences
Copyright © 2010 Kelly Mott
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C. (10 - 3) x 4= 21 True or False
D. 18 = (6 + 3) x 2 True or False
Number Sentences
Copyright © 2010 Kelly Mott
![Page 40: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/40.jpg)
PART 4: MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
![Page 41: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/41.jpg)
• Circle the relationship symbol (= < >)• Start with the side that has numbers and operations.• Try parentheses around the first set of numbers and
operation.• Do the math.• See if it’s true.• If not true, put parentheses around the next set of numbers
and try again.
2 x 3 + 4 = 10
TIPS FOR SOLVING:
Copyright © 2010 Kelly Mott
![Page 42: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/42.jpg)
8 x 2 + 20 = 36
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbol (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 43: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/43.jpg)
25 = 5 x 2 + 3
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbol (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 44: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/44.jpg)
5 x 7 - 5 =10
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbol (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 45: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/45.jpg)
43 = 9 x 5 – 2
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbols (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 46: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/46.jpg)
28 ÷ 7 x 4 = 16
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbol (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 47: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/47.jpg)
12 ÷ 2 x 3 = 2
MAKE THE SENTENCE TRUE
Copyright © 2010 Kelly Mott
CHECK LIST:
___ Circle the relationship symbol (= < >)
___ Start with the side that has numbers and operations.
___ Try parentheses around the first set of numbers and operation.
___ Do the math.
___ See if it’s true.
___ If not true, put parentheses around the next set of numbers and try again.
![Page 48: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/48.jpg)
Does this make sense?
Copyright © 2010 Kelly Mott
![Page 49: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/49.jpg)
a
Copyright © 2010 Kelly Mott
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Copyright © 2010 Kelly Mott
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HOMEWORKPage 68
Copyright © 2010 Kelly Mott
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![Page 54: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/54.jpg)
![Page 55: Everyday Math Grade 4 – Lesson 3.9 Parentheses in Number Sentences Copyright © 2010 Kelly Mott.](https://reader035.fdocuments.in/reader035/viewer/2022062217/56649c8f5503460f9494848f/html5/thumbnails/55.jpg)
• Circle the relationship symbol (= < >)• Start with the side that has numbers and operations.• Try parentheses around the first set of numbers and
operation.• Do the math.• See if it’s true.• If not true, put parentheses around the next set of
numbers and try again.
TIPS
Copyright © 2010 Kelly Mott