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Transcript of Splash Screen
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Chapter 4Fractions and Decimals
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Chapter 4Fractions and Decimals
Click the mouse or press the space bar to continue.
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Lesson 4-1 Greatest Common Factor
Lesson 4-2 Problem-Solving Strategy: Make an Organized List
Lesson 4-3 Simplifying Fractions
Lesson 4-4 Mixed Numbers and Improper Fractions
Lesson 4-5 Least Common Multiple
Lesson 4-6 Problem-Solving Investigation: Choose the Best Strategy
Lesson 4-7 Comparing Fractions
Lesson 4-8 Writing Decimals as Fractions
Lesson 4-9 Writing Fractions as Decimals
Lesson 4-10 Algebra: Ordered Pairs and Functions
44Fractions and Decimals
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Five-Minute Check (over Chapter 3)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
Example 3
Example 4
Example 5
4-14-1 Greatest Common Factor
Greatest Common Factor
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4-14-1 Greatest Common Factor
• I will find the greatest common factor of two or more numbers.
• common factor
• greatest common factor (GCF)
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4-14-1 Greatest Common Factor
Preparation for Standard 6NS2.4 Determine the least common multiple and the greatest common divisor of whole numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form for a fraction).
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First, list the factors by pairs for each number.
Identify the common factors of 20 and 36.
4-14-1 Greatest Common Factor
Answer: The common factors of 20 and 36 are 1, 2, and 4.
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4-14-1 Greatest Common Factor
Identify the common factors of 12 and 18.
A. 1, 2, 3, 6
B. 1, 2, 6
C. 1, 2, 4, 6
D. 1, 2, 3, 4, 6
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Find the GCF of 36 and 48.
Write the prime factorization.
36
4-14-1 Greatest Common Factor
12 × 3
4 × 3 3
32 × 2 × 3 ×
48
Answer: The GCF of 36 and 48 is 2 × 3 or 6.
2 × 24
2 × 22 2 3×××
3 × 42 2 ××
2 × 122 ×
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Check
4-14-1 Greatest Common Factor
Use a Venn diagram to show the factors. Notice that the factors 1, 2, 3, 4, 6, and 12 are common factors of 36 and 48 and the GCF is 12.
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Find the GCF of 21 and 28.
Answer: The GCF of 21 and 28 is 7.
4-14-1 Greatest Common Factor
21 28
7 × 3 2 × 14
2 × 72
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Check
4-14-1 Greatest Common Factor
Use a Venn diagram to show the factors. Notice that the factors 1 and 7 are common factors of 21 and 28 and the GCF is 7.
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4-14-1 Greatest Common Factor
Find the GCF of 15 and 25.
A. 1
B. 2
C. 5
D. 15
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Ana sells bags of different kinds of cookies. She made $27 selling bags of peanut butter cookies, $18 from chocolate chip cookies, and $45 selling bags of oatmeal cookies. Each bag of cookies costs the same amount. What is the most that Ana could have charged for each bag of cookies?
4-14-1 Greatest Common Factor
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Factors of 27: 1, 3, 9, 27
Factors of 18: 1, 2, 3, 6, 9, 18
Factors of 45: 1, 3, 5, 9, 15, 45
Answer: The GCF of 27, 18, and 45 is 9. So, the most Ana could have charged for each bag of cookies is $9.
4-14-1 Greatest Common Factor
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4-14-1 Greatest Common Factor
Joy bought presents for her three friends. She spent $48 on Jonah, $36 on Louise, and $60 on Brenden. Each gift cost the same amount. What is the most each gift could have cost?
A. $1
B. $4
C. $18
D. $12
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Refer to Example 4 of this lesson. How many bags could Ana have sold if each bag cost $9?
4-14-1 Greatest Common Factor
There is a total of $27 + $18 + $45 or $90.
Answer: So, the number of bags of cookies is $90 ÷ $9 or 10.
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4-14-1 Greatest Common Factor
If Joy spent $48 on Jonah, $36 on Louise, and $60 on Brenden, and each gift cost $12, how many gifts did she buy?
A. 48
B. 36
C. 12
D. 60
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Five-Minute Check (over Lesson 4-1)
Main Idea
California Standards
Example 1: Problem-Solving Strategy
4-24-2 Problem-Solving Strategy: Make an Organized List
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4-24-2 Problem-Solving Strategy: Make an Organized List
• I will solve problems by making an organized list.
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4-24-2 Problem-Solving Strategy: Make an Organized List
Standard 5MR1.1 Analyze problems by identifying relationships, distinguishing relevant from irrelevant information, sequencing and prioritizing information, and observing patterns.
Standard 5NS1.4 Determine the prime factors of all numbers through 50 and write the numbers as the product of their prime factors.
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Jessica is setting up four booths in a row for the school carnival. There will be a dart game booth, a ring toss booth, a face-painting booth, and a virtual football booth. In how many ways can the four booths be arranged for the school carnival?
4-24-2 Problem-Solving Strategy: Make an Organized List
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Understand
What facts do you know?
• There are four different booths: dart game, ring toss, face-painting, and virtual football.
• The booths will be set up in a row.
What do you need to find?
• Find how many different ways the booth can be arranged.
4-24-2 Problem-Solving Strategy: Make an Organized List
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Plan
Make a list of all the different possible arrangements. Use D for darts, R for ring toss, F for face-painting, and V for virtual football. Organize your list by listing each booth first as shown below.
4-24-2 Problem-Solving Strategy: Make an Organized List
D _ _ _ R _ _ _ F _ _ _ V _ _ _
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Plan
Then fill in the remaining three positions with the other booths. Continue this process until all the different arrangements are listed in the second, third, and fourth positions.
4-24-2 Problem-Solving Strategy: Make an Organized List
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Solve
Listing D first:
4-24-2 Problem-Solving Strategy: Make an Organized List
Listing R first:
D R F V
D R V F
D F R V
D F V R
D V R F
D V F R
R F V D
R F D V
R V D F
R V F D
R D F V
R D V F
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Solve
Listing F first:
Answer: There are 24 different ways the booths can be arranged.
4-24-2 Problem-Solving Strategy: Make an Organized List
Listing V first:
F V D R
F V R D
F D R V
F D V R
F R V D
F R D V
V D R F
V D F R
V R F D
V R D F
V F D R
V F R D
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Check
Look back. Is each booth accounted for six times in the first, second, third, and fourth positions?
4-24-2 Problem-Solving Strategy: Make an Organized List
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Five-Minute Check (over Lesson 4-2)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
Example 3
Example 4
4-34-3 Simplifying Fractions
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4-34-3 Simplifying Fractions
• I will express fractions in simplest form.
• ratio
• equivalent fractions
• simplest form
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4-34-3 Simplifying Fractions
Preparation for Standard 5NS2.3 Solve simple problems, including ones arising in concrete situations, involving the addition and subtraction of fractions and mixed numbers (like and unlike denominators of 20 or less), and express answers in the simplest form.
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Replace the x with a number so the fractions are equivalent.
4-34-3 Simplifying Fractions
613
x52
=
613
x52
=Since 13 × 4 = 52, multiply the numerator and denominator by 4.
Answer: So, x = 24.
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4-34-3 Simplifying Fractions
Solve for x. Choose the correct answer.
A. 24
B. 28
C. 30
D. 7
712
x48
=
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Replace the x with a number so the fractions are equivalent.
4-34-3 Simplifying Fractions
2440
3x
=
Since 24 ÷ 8 = 3, divide the numerator and denominator by 8.
Answer: So, x = 5.
2440
3x
=
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4-34-3 Simplifying Fractions
Solve for x. Choose the correct answer.
A. 5
B. 10
C. 20
D. 15
525
1x
=
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4-34-3 Simplifying Fractions
One Way: Divide by common factors.
1442
721
13
= = A common factor of 14 and 42 is 2.A common factor of 7 and 21 is 7.
Write in simplest form.1442
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4-34-3 Simplifying Fractions
Another Way: Divide by the GCF.
factors of 14: 1, 2, 7, 14factors of 42: 1, 2, 3, 6, 7, 14, 21, 42
The GCF of 14 and 42 is 14.
1442
13
= Divide the numerator and denominator by the GCF, 14.
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4-34-3 Simplifying Fractions
Write in simplest form.4850
A. 2425
B. 9
10
C. 1415
D. 4850
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The GCF of 3 and 24 is 3.
4-34-3 Simplifying Fractions
324
18
=
1
8
Mentally divide both the numerator and denominator by 3.
Lin practices gymnastics 3 hours each day. There
are 24 hours in a day. Express the fraction in
simplest form.
324
Answer: So, Lin spends or 1 out of every 8
hours practicing gymnastics.
18
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4-34-3 Simplifying Fractions
A. 5
10
Mark spends $10 of the $50 bill his mom gave him.
Express in simplest form.1050
D. 125
B. 12
C. 15
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Five-Minute Check (over Lesson 4-3)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
4-44-4 Mixed Numbers and Improper Fractions
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4-44-4 Mixed Numbers and Improper Fractions
• I will write mixed numbers as improper fractions and vice versa.
• mixed number
• proper fraction
• improper fraction
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4-44-4 Mixed Numbers and Improper Fractions
Standard 5NS1.5 Identify and represent on a number line decimals, fractions, mixed numbers, and positive and negative integers.
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4-44-4 Mixed Numbers and Improper Fractions
If a spaceship lifts off the Moon, it must travel at
a speed of 2 kilometers per second in order to
escape the pull of the Moon’s gravity. Write this
speed as an improper fraction. Then graph the
improper fraction on a number line.
25
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4-44-4 Mixed Numbers and Improper Fractions
(2 × 5) + 2
5=2 2
5 =125
Answer: So, 2 = .125
25
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4-44-4 Mixed Numbers and Improper Fractions
Since is between 2 and 3, draw a number line
using increments of one fifth. Then, draw a dot at .
125 12
5
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4-44-4 Mixed Numbers and Improper Fractions
The average height of an adult man is 5 feet tall.
Choose the answer that shows 5 as an improper
fraction.
912
912
A. 5912
D. 6960
B. 9
108
C. 9
60
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4
4-44-4 Mixed Numbers and Improper Fractions
235
– 203
Write as a mixed number. Then graph the mixed
number on a number line.
234
34
Answer: So, = 5 . 234
34
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4-44-4 Mixed Numbers and Improper Fractions
Since 5 is between 5 and 6, draw a number line
from 5 to 6 using increments of one fourth. Then, draw
a dot at 5 .
34
34
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4-44-4 Mixed Numbers and Improper Fractions
Choose the answer that shows as a mixed
number.
476
A. 6 57
B. 7 56
C. 5 67
D. 7 78
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Five-Minute Check (over Lesson 4-4)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
Example 3
4-54-5 Least Common Multiple
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4-54-5 Least Common Multiple
• I will find the least common multiple of two or more numbers.
• multiple
• common multiples
• least common multiple (LCM)
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4-54-5 Least Common Multiple
Preparation for Standard 5SDAPS1.3 Use fractions and percentages to compare data sets of different sizes.
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Identify the first three common multiples of 3 and 9.
First, list the multiples of each number.
4-54-5 Least Common Multiple
Multiples of 3: 3, 6, 9, 12, 15, 18, …
Multiples of 9: 9, 18, 27, 36, 45, 49, …
1 × 3, 2 × 3, 3 × 3, …
1 × 9, 2 × 9, 3 × 9, …
Notice that 9, 18, and 27 are multiples common to both 3 and 9.
Answer: So, the first three common multiples of 3 and 9 are 9, 18, and 27.
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4-54-5 Least Common Multiple
Identify the first three multiples of 6 and 12.
A. 6, 12, 18
B. 6, 12, 24
C. 12, 24, 36
D. 12, 24, 48
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Find the LCM of 8 and 18.
Write the prime factorization of each number.
4-54-5 Least Common Multiple
8
2 × 4
2 × 22
18
3 × 6
2 × 33
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Identify all common prime factors.
8 = 2 × 2 × 2
Answer: The LCM is 2 × 2 × 2 × 3 × 3 or 72.
4-54-5 Least Common Multiple
18 = 3 × 2 × 3
Find the product of the prime factors using each common prime factor only once and any remaining factors.
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4-54-5 Least Common Multiple
Find the LCM of 7 and 21.
A. 7
B. 42
C. 21
D. 14
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Liam, Eva, and Bansi each have the same amount of money. Liam has only nickels, Eva has only dimes, and Bansi has only quarters. What is the least amount of money that each of them could have?
Find the LCM using prime factors.
Answer: The least amount of money they could all have is 5 × 5 × 2 or $0.50.
4-54-5 Least Common Multiple
5
5
10
2 × 5
25
5 × 5
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4-54-5 Least Common Multiple
Samuel, John, and Uma were all paid the same amount in ones, fives, and tens, respectively. What is the least they could have been paid?
A. $10
B. $20
C. $25
D. $5
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Five-Minute Check (over Lesson 4-5)
Main Idea
California Standards
Example 1: Problem-Solving Investigation
4-64-6 Problem-Solving Investigation: Choose the Best Strategy
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
• I will choose the best strategy to solve a problem.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Standard 5MR2.6 Make precise calculations and check the validity of the results from the context of the problem.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Standard 5SDAP1.2 Organize and display single-variable data in appropriate graphs and representations (e.g., histogram, circle graphs) and explain which types of graphs are appropriate for various data sets.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
TROY: This weekend, my family went to the zoo. We spent a total of $42 on admission tickets. We purchased at least 2 adult tickets for $9 each and no more than three children’s tickets for $5 each.
YOUR MISSION: Find how many adult and children’s tickets Troy’s family purchased.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Understand
What facts do you know?
• You know that the family spent a total of $42.
• At least 2 adult tickets were purchased for $9 each.
• No more than three children’s tickets were purchased for $5 each.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Understand
What do you need to find?
• You need to find how many of each ticket Troy’s family purchased.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Plan
Guess and check to find the number of adult and children’s tickets purchased.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Solve
Answer: So, Troy’s family bought 3 adult and 3 children’s tickets.
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4-64-6 Problem-Solving Investigation: Choose the Best Strategy
Check
Look back. Three adult tickets cost 3 × $9, or $27 and three children’s tickets cost 3 × $5 or $15. Since $27 + $15 = $42, the answer is correct.
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Five-Minute Check (over Lesson 4-6)
Main Idea and Vocabulary
California Standards
Key Concept: Compare Two Fractions
Example 1
Example 2
Example 3
Example 4
4-74-7 Comparing Fractions
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4-74-7 Comparing Fractions
• I will compare fractions.
• least common denominator (LCD)
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4-74-7 Comparing Fractions
Standard 5SDAP1.3 Use fractions and percentages to compare data sets of different sizes.
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4-74-7 Comparing Fractions
Step 1 The LCM of the denominators is 21. So, the LCD is 21.
Step 2 Write an equivalent fraction with a denominator of 21 for each fraction.
821
821
=37
921
=
Replace the with <, >, or = in to make a true sentence.
821
37
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4-74-7 Comparing Fractions
Answer: So, < .821
37
Step 3 < , since 8 < 9.821
921
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4-74-7 Comparing Fractions
A. >
B. <
C. =
D. +
Which answer below makes a true sentence?
34
23
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4-74-7 Comparing Fractions
Step 1 The LCM of the denominators is 6. So, the LCD is 6.
Replace the with <, >, or = in 2 2 to make a true sentence.
13
26
Since the whole numbers are the same, compare
and .
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4-74-7 Comparing Fractions
Step 3 = , since 2 = 2.
Step 2 Write an equivalent fraction with a denominator of 6 for each fraction.
26
26
=13
26
=
Answer: So, 2 = 2 .13
26
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4-74-7 Comparing Fractions
A. >
B. <
C. =
D. +
Replace the with <, >, or = to make 4 4 a true sentence.
38
45
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4-74-7 Comparing Fractions
Step 1 Write each quantity as a fraction.
Ginny had 3 out of 4 hits in a baseball game. Belinda had 4 out of 6 hits in that game. Who has the greater fraction of hits?
Ginny: Belinda:
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4-74-7 Comparing Fractions
Step 2 The LCD of the fractions is 12. So, rewrite each fraction with a denominator of 12.
34
912
=46
812
=
Answer: Since > , the fraction of hits Ginny
made is greater.
912
812
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4-74-7 Comparing Fractions
Heidi got 10 out of 12 answers right on the math quiz. Tiffany got 5 out of 6 right on her math quiz. Who has the greater fraction of correct answers?
A. Tiffany
B. Heidi
C. They got the same fraction.
D. neither
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4-74-7 Comparing Fractions
You need to compare the fractions. The LCD of the fractions is 100.
Use the table to answer the following question. What did the least number of people say should be done with a penny?
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4-74-7 Comparing Fractions
Rewrite the fractions with the LCD, 100.
825
32100
=3
1003
100=
1320
65100
=
Answer: Since the least number is 3, the least number of people were undecided.
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4-74-7 Comparing Fractions
According to the data in the table, who walked the shortest distance?
A. Kayla
B. Nora
C. Mercedes
D. They all walked the same distance.
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Five-Minute Check (over Lesson 4-7)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
Example 3
Example 4
Example 5
4-84-8 Writing Decimals as Fractions
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4-84-8 Writing Decimals as Fractions
• I will write decimals as fractions or mixed numbers in simplest form.
• rational number
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4-84-8 Writing Decimals as Fractions
Standard 5NS1.2 Interpret percents as a part of a hundred; find decimal and percent equivalents for common fractions and explain why they represent the same value; compute a given percent of a whole number.
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In the place-value chart, the last nonzero digit, 4, is in the tenths place. Say four tenths.
Write 0.4 as a fraction in simplest form.
4-84-8 Writing Decimals as Fractions
0 0 0 0 4 0 0 0
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4-84-8 Writing Decimals as Fractions
0.4 =4
10Write as a fraction.
=4
10Simplify. Divide the numerator and denominator by the GCF, 2.=
25
2
5
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4-84-8 Writing Decimals as Fractions
Choose the answer below that shows 0.8 as a fraction in simplest form.
A. 45
C. 68
D. 23
B. 8
10
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4-84-8 Writing Decimals as Fractions
In the place-value chart, the last nonzero digit, 8, is in the hundredths place. Say thirty-eight hundredths.
Write 0.38 as a fraction in simplest form.
0 0 0 0 3 8 0 0
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4-84-8 Writing Decimals as Fractions
0.38 =38
100Write as a fraction.
=Simplify. Divide the numerator and denominator by the GCF, 2.=
1950
19
50
38100
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4-84-8 Writing Decimals as Fractions
Choose the answer below that shows 0.75 as a fraction in simplest form.
A. 57
C. 34
D. 75100
B. 75
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4-84-8 Writing Decimals as Fractions
In the place-value chart, the last nonzero digit, 7, is in the hundredths place. Say seven hundredths.
Write 0.07 as a fraction in simplest form.
0 0 0 0 0 7 0 0
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4-84-8 Writing Decimals as Fractions
0.07 =7
100Write as a fraction.
=Simplify. Divide by the GCF, 1.
7100
=7
100
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4-84-8 Writing Decimals as Fractions
Choose the answer below that shows 0.04 as a fraction in simplest form.
A. 4100
B. 2
50
C. 4
10
D. 1
25
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4-84-8 Writing Decimals as Fractions
In the place-value chart, the last nonzero digit, 4, is in the thousandths place. Say two hundred sixty-four thousandths.
Write 0.264 as a fraction in simplest form.
0 0 0 0 2 6 4 0
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4-84-8 Writing Decimals as Fractions
0.264 =264
1,000Write as a fraction.
Simplify. Divide by the GCF, 8.
=264
1,000
=33
125
33
125
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4-84-8 Writing Decimals as Fractions
Choose the answer below that shows 0.246 as a fraction in simplest form.
B. 123500
C. 1740
D. 4167
A. 246
1,000
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In 1955, Hurricane Diane moved through New England and produced one of the region’s heaviest rainfalls in history. In a 24-hour period, 18.15 inches of rain were recorded in one area. Express this amount as a mixed number in simplest form.
4-84-8 Writing Decimals as Fractions
18.15 =15100
Write as a fraction.
Simplify. =
=3
20
18
15100
18
18
3
20
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4-84-8 Writing Decimals as Fractions
Lee Redmond is the world record holder for the longest fingernails. Her thumbnail is 30.2 inches long. Choose the answer below that shows 30.2 inches written as a mixed number in simplest form.
A. 30 15
C. 30 34
D. 30 14
B. 30 12
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Five-Minute Check (over Lesson 4-8)
Main Idea
California Standards
Example 1
Example 2
Example 3
Example 4
4-94-9 Writing Fractions as Decimals
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4-94-9 Writing Fractions as Decimals
Standard 5NS1.2 Interpret percents as a part of a hundred; find decimal and percent equivalents for common fractions and explain why they represent the same value; compute a given percent of a whole number.
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= 0.7
4-94-9 Writing Fractions as Decimals
Answer: 0.7
Write as a decimal.7
10
Since has a denominator of 10, it can be written as
a decimal using place value.
710
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4-94-9 Writing Fractions as Decimals
A. 0.029
B. 0.29
C. 2.9
D. 0.0029
Choose the answer below that shows written as a decimal.
29100
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0.
Divide 1 by 4.
4-94-9 Writing Fractions as Decimals
Write as a decimal.
4 1.002
– 820
– 200
5
Answer: Therefore, = 0.25.14
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4-94-9 Writing Fractions as Decimals
A. 0.58
B. 0.675
C. 0.625
D. 0.526
Choose the answer below that shows written as a decimal.
58
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4-94-9 Writing Fractions as Decimals
8 3.0003
– 2 460
– 564
70.38
0– 40
0
Write as a decimal.38
Answer: Therefore, = 0.375.38
5
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4-94-9 Writing Fractions as Decimals
A. 0.5
B. 0.2
C. 0.25
D. 0.4
Choose the answer below that shows written as a decimal.
25
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4-94-9 Writing Fractions as Decimals
Answer: The number of packs is 3.125.
At a meeting, people drank 25 bottles of water. The
water came in packs of 8. This makes 3 packs.
Write the number as a decimal.
3 = 3 +
= 3
= 3 + 0.125 or 3.125
+125
1,000
Definition of a mixed number
Since 8 × 125 = 1,000, multiply the numerator and the denominator by 125.
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4-94-9 Writing Fractions as Decimals
A. 1.8
B. 1.10
C. 1.18
D. 1.08
At the party, kids drank 18 juice boxes. The juice
came in packs of 10. This makes 1 packs. Choose
the answer below that shows the number of packs
written as a decimal.
810
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Five-Minute Check (over Lesson 4-9)
Main Idea and Vocabulary
California Standards
Example 1
Example 2
Example 3
Example 4
Example 5
4-104-10 Algebra: Ordered Pairs and Functions
Ordered Pairs and Functions
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4-104-10 Algebra: Ordered Pairs and Functions
• I will use ordered pairs to locate points and organize data.
• coordinate plane
• origin
• x-axis
• y-axis
• ordered pair
• x-coordinate
• y-coordinate
• graph
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4-104-10 Algebra: Ordered Pairs and Functions
Standard 5SDAP1.5 Know how to write ordered pairs correctly; for example, (x, y).
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Step 1 Start at the origin. Move right along the x-axis until you are under point S. The x-coordinate of the ordered pair is 1.
Write the ordered pair that names the point S.
4-104-10 Algebra: Ordered Pairs and Functions
S
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Step 2 Now move up until you reach point S. The y-coordinate is 2.
Answer: So, point S is named by the ordered pair (1, 2).
4-104-10 Algebra: Ordered Pairs and Functions
S
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4-104-10 Algebra: Ordered Pairs and Functions
Write the ordered pair that names the point T.
A. (2, 1)
B. (1, 2)
C. (1, 1)
D. (2, 2)
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• Start at the origin.
• Move 2 units to the right on the x-axis.
• Then move 2 units up to locate the point.
• Draw a dot and label the dot T.
Graph the point T(2, 2).
4-104-10 Algebra: Ordered Pairs and Functions
T
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point N at (4, 3)?
A.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point N at (4, 3)?
B.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point N at (4, 3)?
C.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point N at (4, 3)?
D.
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4-104-10 Algebra: Ordered Pairs and Functions
B.
Which of the graphs show point N at (4, 3)?
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4-104-10 Algebra: Ordered Pairs and Functions
Graph the point U(1 , 0).
• Start at the origin.
• Then move 0 units up to locate the point.
• Draw a dot and label the dot U.
• Move 1 units to the
right on the x-axis.
U
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point U at (2, 4 )?
A.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point U at (2, 4 )?
B.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point U at (2, 4 )?
C.
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4-104-10 Algebra: Ordered Pairs and Functions
Which of the graphs show point U at (2, 4 )?
D.
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4-104-10 Algebra: Ordered Pairs and Functions
C.
Which of the graphs show point U at (2, 4 )?
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Amazi feeds her dog, Buster, 2 cups of food each day. Amazi made this table to show how much food Buster eats for 1, 2, 3, and 4 days. List the information as ordered pairs (days, food).
4-104-10 Algebra: Ordered Pairs and Functions
Answer: The ordered pairs are (1, 2), (2, 4), (3, 6), (4, 8).
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4-104-10 Algebra: Ordered Pairs and Functions
Below is the continuation of the table in Example 4. Choose the answer that shows the information in ordered pairs.
A. (10, 5) (12, 6) (14, 7) (16, 8)
B. (5, 10) (6, 12) (7, 14) (8, 16)
C. (5, 6) (7, 8) (10, 12) (14, 16)
D. (5, 5) (6, 6) (7, 7) (8, 8)
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Graph the ordered pairs from Example 4. Then describe the graph.
4-104-10 Algebra: Ordered Pairs and Functions
Answer: The points appear to lie on a line.
The ordered pairs (1, 2), (2, 4), (3, 6), and (4, 8) correspond to the points A, B, C, and D in the coordinate plane.
A
B
C
D
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4-104-10 Algebra: Ordered Pairs and Functions
Choose the graph that has the ordered pairs (5, 3), (4, 2), (3, 1), and (2, 0) plotted correctly.
A.
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4-104-10 Algebra: Ordered Pairs and Functions
Choose the graph that has the ordered pairs (5, 3), (4, 2), (3, 1), and (2, 0) plotted correctly.
B.
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4-104-10 Algebra: Ordered Pairs and Functions
Choose the graph that has the ordered pairs (5, 3), (4, 2), (3, 1), and (2, 0) plotted correctly.
C.
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4-104-10 Algebra: Ordered Pairs and Functions
Choose the graph that has the ordered pairs (5, 3), (4, 2), (3, 1), and (2, 0) plotted correctly.
D.
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4-104-10 Algebra: Ordered Pairs and Functions
B.
Choose the graph that has the ordered pairs (5, 3), (4, 2), (3, 1), and (2, 0) plotted correctly.
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44Fractions and Decimals
Five-Minute Checks
Greatest Common Factor
Ordered Pairs and Functions
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44Fractions and Decimals
Lesson 4-1 (over Chapter 3)
Lesson 4-2 (over Lesson 4-1)
Lesson 4-3 (over Lesson 4-2)
Lesson 4-4 (over Lesson 4-3)
Lesson 4-5 (over Lesson 4-4)
Lesson 4-6 (over Lesson 4-5)
Lesson 4-7 (over Lesson 4-6)
Lesson 4-8 (over Lesson 4-7)
Lesson 4-9 (over Lesson 4-8)
Lesson 4-10 (over Lesson 4-9)
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44Fractions and Decimals
(over Chapter 3)
Find each sum or difference.
A. 4.1
B. 9.6
C. 0.4
D. 5.1
0.5 + 4.6
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44Fractions and Decimals
(over Chapter 3)
A. 8.76
B. 2.84
C. 8.66
D. 7.66
Find each sum or difference.
2.91 + 5.75
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44Fractions and Decimals
(over Chapter 3)
A. 2.7
B. 14.3
C. 3.7
D. 3.3
Find each sum or difference.
8.5 – 5.8
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44Fractions and Decimals
(over Chapter 3)
A. 9.46
B. 8.66
C. 9.44
D. 8.56
Find each sum or difference.
9.01 – 0.45
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44Fractions and Decimals
(over Chapter 3)
A. 8.56
B. 13.29
C. 9.42
D. 12.29
Find each sum or difference.
4.3 + 8.99
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44Fractions and Decimals
(over Chapter 3)
A. 9.32
B. 19.32
C. 8.22
D. 11.98
Find each sum or difference.
20 – 11.78
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44Fractions and Decimals
(over Lesson 4-1)
A. 3
B. 3 and 6
C. 1 and 6
D. 1 and 3
Identify the common factors of each set of numbers.
9, 15
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44Fractions and Decimals
A. 1 and 3
B. 1, 2, 3, and 6
C. 1, 2, and 3
D. 1, 3, and 6
(over Lesson 4-1)
Identify the common factors of each set of numbers.
6, 42
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44Fractions and Decimals
A. 3
B. 5
C. 1
D. 2
(over Lesson 4-1)
Find the GCF of each set of numbers.
13, 15
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44Fractions and Decimals
A. 2
B. 4
C. 1
D. 11
(over Lesson 4-1)
Find the GCF of each set of numbers.
22, 104
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44Fractions and Decimals
A. 3
B. 2
C. 6
D. 12
(over Lesson 4-1)
Find the GCF of each set of numbers.
24, 42, 72
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44Fractions and Decimals
(over Lesson 4-2)
A. 3
B. 6
C. 12
D. 9
Solve. Use the make an organized list strategy. Luis is displaying sports balls for sale. He has a soccer ball, a baseball, and a basketball. How many different ways can he arrange these balls on a table?
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44Fractions and Decimals
(over Lesson 4-3)
C.34
A.9
12
B.3
24
Write in simplest form. If the fraction is already
in simplest form, write simplest form.
1824
D. simplest form
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44Fractions and Decimals
B. 57
(over Lesson 4-3)
A. 1517
C. 1014
Write in simplest form. If the fraction is already
in simplest form, write simplest form.
3549
D. simplest form
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44Fractions and Decimals
D. simplest form
(over Lesson 4-3)
Write in simplest form. If the fraction is already
in simplest form, write simplest form.
411
A. 8
22
B. 25
C. 13
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44Fractions and Decimals
(over Lesson 4-3)
D. simplest form
Write in simplest form. If the fraction is already
in simplest form, write simplest form.
19105
A. 8
13
C. 38210
B. 15
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44Fractions and Decimals
B. 517
(over Lesson 4-3)
Write in simplest form. If the fraction is already
in simplest form, write simplest form.
30102
A. 1034
D. simplest form
C. 1551
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44Fractions and Decimals
C. 296
(over Lesson 4-4)
Write 4 as an improper fraction.56
A.96
B. 246
D. 256
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44Fractions and Decimals
D. 93
Write 3 as an improper fraction.
(over Lesson 4-4)
A.33
B. 39
C.13
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44Fractions and Decimals
(over Lesson 4-4)
Write as a mixed number in simplest form.195
A. 3 45
D. 1 145
B. 2 95
C. 2 45
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44Fractions and Decimals
C. 4
(over Lesson 4-4)
A. 123
B. 2126
D. 366
Write as a mixed number in simplest form.246
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44Fractions and Decimals
(over Lesson 4-4)
Write as a mixed number in simplest form.1717
B. 1
D. 0
A. 11
17
C. 217
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44Fractions and Decimals
(over Lesson 4-5)
Find the LCM of 9, 12.
A. 3
B. 72
C. 1
D. 36
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44Fractions and Decimals
Find the LCM of 5, 9.
A. 3
B. 90
C. 45
D. 14
(over Lesson 4-5)
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44Fractions and Decimals
A. 33
B. 99
C. 3
D. 66
Find the LCM of 3, 11.
(over Lesson 4-5)
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44Fractions and Decimals
Find the LCM of 4, 6, 12.
A. 24
B. 12
C. 6
D. 36
(over Lesson 4-5)
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44Fractions and Decimals
(over Lesson 4-5)
Find the LCM of 2, 4, 7.
A. 14
B. 21
C. 56
D. 28
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44Fractions and Decimals
(over Lesson 4-6)
Solve this problem. A clothing store sells 4 different styles of shoes in 3 different colors. How many combinations of style and color are possible?
A. 24
B. 7
C. 12
D. 4
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44Fractions and Decimals
(over Lesson 4-7)
A. <
B. >
C. =
Replace each with <, >, or = to make a true sentence.
58
56
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44Fractions and Decimals
(over Lesson 4-7)
A. <
B. >
C. =
Replace each with <, >, or = to make a true sentence.
3 37
1223
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44Fractions and Decimals
(over Lesson 4-7)
A. <
B. >
C. =
Replace each with <, >, or = to make a true sentence.1316
45
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44Fractions and Decimals
(over Lesson 4-7)
A. <
B. >
C. =
Replace each with <, >, or = to make a true sentence.
13
732
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44Fractions and Decimals
D. 1120
(over Lesson 4-8)
Write 0.55 as a fraction in simplest form.
C. 11100
A.55100
B. 510
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44Fractions and Decimals
B. 225
(over Lesson 4-8)
Write 0.08 as a fraction in simplest form.
A.8
100
D. 45
C.8
10
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44Fractions and Decimals
C. 318
(over Lesson 4-8)
Write 3.125 as a mixed number in simplest form.
A. 35
40
B. 31251000
D. 31251000
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44Fractions and Decimals
B. 4 125
(over Lesson 4-8)
Write 4.04 as a mixed number in simplest form.
A. 404100
C. 4 4100
D. 4 250
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44Fractions and Decimals
(over Lesson 4-9)
A. 0.7
B. 0.07
C. 7.10
D. 0.71
Write as a decimal.710
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44Fractions and Decimals
A. 0.505
B. 5.50
C. 0.55
D. 0.055
(over Lesson 4-9)
Write as a decimal.1120
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44Fractions and Decimals
B. 2.625
A. 0.625
(over Lesson 4-9)
Write 2 as a decimal.58
D. 8.25
C.318
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44Fractions and Decimals
D. 3.4545...
A. 3.5
(over Lesson 4-9)
Write 3 as a decimal.511
C. 0.4545
B. 3811
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