5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 1. 45, 75 2. 123, 205 3. 459, 378 LCM 4.
12, 15
Slide 2
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 1. 45, 75
Slide 3
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 1. 45, 75 GCF = 3 x 5 = 15 45 75 / \ / \
315 3 25 / \ / \ 3 5 5 5
Slide 4
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 2. 123, 205
Slide 5
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 2. 123, 205 GCF = 41 123 205 / \ / \ 3
41 5 41
Slide 6
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 3. 459, 378
Slide 7
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. GCF 3. 459, 378 GCF = 3 x 3 x 3 = 27 459 378
/ \ / \ 3 153 2 189 / \ / \ 3 51 3 63 / \ / \ 3 17 3 21 / \ 3
7
Slide 8
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. LCM 4. 12, 15 12 15 / \ / \ 2 6 3 5 / \ 2
3
Slide 9
5 Minute Check Use the rainbow factor or the factor tree method
to find the following. LCM 4. 12, 15 LCM = 2 x 2 x 3 x 5 = 60
Slide 10
Flashcards
Slide 11
Monday, April 7 Chapter 1 Review
Slide 12
Chapter 1 Review 1. The ratio of cats to dogs seen by a
veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day,
how many cats did he see? A. 5 C. 29 B. 16 D. 40
Slide 13
Chapter 1 Review 1. The ratio of cats to dogs seen by a
veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day,
how many cats did he see? Method 1 2cats x cats 5 dogs = 40 dogs 2
x 40 5 = 16 cats Answer: B
Slide 14
Chapter 1 Review 1. The ratio of cats to dogs seen by a
veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day,
how many cats did he see? Method 2 5 dogs 2.5 dogs 2 cats = 1 cat
40 2.5 = 16 cats
Slide 15
Chapter 1 Review 2. At a sports camp, there is one counselor
for every 12 campers. If there are 156 campers attending the camp,
which equivalent ratios could be used to find the number of
counselors?
Slide 16
Chapter 1 Review 2. At a sports camp, there is one counselor
for every 12 campers. If there are 156 campers attending the camp,
which equivalent ratios could be used to find the number of
counselors? 1 counselor x counselors 12 campers = 156 campers
Slide 17
Chapter 1 Review 2. At a sports camp, there is one counselor
for every 12 campers. If there are 156 campers attending the camp,
which equivalent ratios could be used to find the number of
counselors? 1 x 2 x 12 = 156 or 24 = 156 Answer: G
Slide 18
Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a
force of 110 pounds to lift a 2,500-pound car. In simplest form,
what is the ratio of the cars weight to the force required to lift
the car?
Slide 19
Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a
force of 110 pounds to lift a 2,500-pound car. In simplest form,
what is the ratio of the cars weight to the force required to lift
the car? Cars weight Lift
Slide 20
Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a
force of 110 pounds to lift a 2,500-pound car. In simplest form,
what is the ratio of the cars weight to the force required to lift
the car? Cars weight 2,500 lbs Lift 110 lbs
Slide 21
Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a
force of 110 pounds to lift a 2,500-pound car. In simplest form,
what is the ratio of the cars weight to the force required to lift
the car? Cars weight 2,500 lbs 250 Lift 110 lbs = 11
Slide 22
Chapter 1 Review 4. A baker is making an oversized sheet cake
for a school dance. The recipe calls for 2 cups of sugar for every
3 cups of flour. How many cups of flour are needed, if she is using
18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups
Slide 23
Chapter 1 Review 4. A baker is making an oversized sheet cake
for a school dance. The recipe calls for 2 cups of sugar for every
3 cups of flour. How many cups of flour are needed, if she is using
18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups Can we
get rid of any answers?
Slide 24
Chapter 1 Review 4. A baker is making an oversized sheet cake
for a school dance. The recipe calls for 2 cups of sugar for every
3 cups of flour. How many cups of flour are needed, if she is using
18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups Can we
get rid of any answers?
Slide 25
Chapter 1 Review 4. A baker is making an oversized sheet cake
for a school dance. The recipe calls for 2 cups of sugar for every
3 cups of flour. How many cups of flour are needed, if she is using
18 cups of sugar. 2 cups sugar 18 cups sugar 3 cups flour = x cups
flour 3 x 18 2 = 27 cups flour Answer: A
Slide 26
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? F. Sale A G. Sale B H. Sale C I. Sale D
Slide 27
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets $2
Slide 28
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1
Slide 29
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets $.60
Slide 30
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets 10 sheets $.60
= $1
Slide 31
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets 10 sheets $.60
= $1 5 sheets $1
Slide 32
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets 10 sheets $.60
= $1 5 sheets $1 3 sheets $.60
Slide 33
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets 10 sheets $.60
= $1 5 sheets $1 3 sheets 5 sheets $.60 = $1
Slide 34
Chapter 1 Review 5. Which rate gives the best price for
scrapbook paper? 10 sheets 5 sheets $2 = $1 6 sheets 10 sheets $.60
= $1 5 sheets $1 3 sheets 5 sheets Answer: G $.60 = $1
Slide 35
Chapter 1 Review 6. Which of the following ratios is equivalent
to ? A. B. C. D.
Slide 36
Chapter 1 Review 6. Which of the following ratios is equivalent
to ? =.71428 A. =.83333 B. =.6 C. =.88235 D. =.71428
Slide 37
Chapter 1 Review 7. The table shows the cups of whole wheat
flour required to make dog biscuits. How many cups of whole wheat
flour are required to make 35 biscuits?
Slide 38
Chapter 1 Review 7. The table shows the cups of whole wheat
flour required to make dog biscuits. How many cups of whole wheat
flour are required to make 35 biscuits? 10 biscuits 35 biscuits 2
cups flour = x cups flour 2 x 35 10 = 7 cups
Slide 39
Chapter 1 Review 8. A school population was predicted to
increase by 50 students a year for the next 10 years. If the
current population is 700 students, what will be the enrollment
after 10 years? F. 50 students H. 1,200 students G. 500 studentsI.
7,000 students
Slide 40
Chapter 1 Review 8. A school population was predicted to
increase by 50 students a year for the next 10 years. If the
current population is 700 students, what will be the enrollment
after 10 years? F. 50 students H. 1,200 students G. 500 studentsI.
7,000 students Can we get rid of any answers?
Slide 41
Chapter 1 Review 8. A school population was predicted to
increase by 50 students a year for the next 10 years. If the
current population is 700 students, what will be the enrollment
after 10 years? F. 50 students H. 1,200 students G. 500 studentsI.
7,000 students Can we get rid of any answers?
Slide 42
Chapter 1 Review 8. A school population was predicted to
increase by 50 students a year for the next 10 years. If the
current population is 700 students, what will be the enrollment
after 10 years? 700 students + 50 a year x 10 years = 1200
students
Slide 43
Chapter 1 Review 8. A school population was predicted to
increase by 50 students a year for the next 10 years. If the
current population is 700 students, what will be the enrollment
after 10 years? 700 750 year 11000 year 6 800 year 21050 year 7 850
year 31100 year 8 900 year 41150 year 9 950 year 51200 year 10
Slide 44
Chapter 1 Review 9. SHORT RESPONSE There are 12 boys and 15
girls in your class. Four new students, 3 boys and 1 girl, join
your class. Compare the ratio of boys to girls before and after the
new students enrolled.
Slide 45
Chapter 1 Review 9. SHORT RESPONSE There are 12 boys and 15
girls in your class. Four new students, 3 boys and 1 girl, join
your class. Compare the ratio of boys to girls before and after the
new students enrolled. old Boys12 4 Girls15 = 5 =.8 new Boys15
Girls16 =.9375 The ratio did not stay the same.
Slide 46
Chapter 1 Review 10. The table shows the cost of different
kinds of fruit. To the nearest cent, what is the cost of 3.5 pounds
of grapes? A. $2.84 C. $3.50 B. $2.88 D. $3.63
Slide 47
Chapter 1 Review 10. The table shows the cost of different
kinds of fruit. To the nearest cent, what is the cost of 3.5 pounds
of grapes? $1 $ x 1 lb = 3.5 lbs 1 x 3.5 1 = $3.50 Answer: C
Slide 48
Chapter 1 Review 11.GRIDDED RESPONSE Mr. Reinard bought 5
pounds of feed for his chickens for $10. How much did the feed cost
per pound in dollars?
Slide 49
Chapter 1 Review 11.GRIDDED RESPONSE Mr. Reinard bought 5
pounds of feed for his chickens for $10. How much did the feed cost
per pound in dollars? $10 $ x 5 lbs feed = 1 lb feed 10 x 1 5 = $2
per lb feed
Slide 50
Chapter 1 Review 12. SHORT RESPONSE The length of a track
around a football field is mile. How many miles do you walk if you
walk 2 times around the track?
Slide 51
Chapter 1 Review 12. SHORT RESPONSE The length of a track
around a football field is mile. How many miles do you walk if you
walk 2 times around the track? 1 lap 2.75 laps.25 mile = x miles.25
x 2.75 1 =.6875 miles = miles
Slide 52
Chapter 1 Review 13. The bar graph below shows the average
number of visitors to different websites during one month. How many
visitors can website B expect to have in one year? F. 2.4 million
G. 24 million H. 240 million I. 2,400 million
Slide 53
Chapter 1 Review 13. The bar graph below shows the average
number of visitors to different websites during one month. How many
visitors can website B expect to have in one year? 2 million
visitors x million visitors 1 month = 12 months 2 x 12 1 = 24
million visitorsAnswer: G
Slide 54
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part A Write an equivalent ratio to find how long it would
take to sort 120 books. Part B How many hours will it take the
class to sort 120 books? Part C Suppose their rate slowed to 30
books in 90 minutes. How long would it take the class to sort the
120 books? Explain your reasoning.
Slide 55
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part A Write an equivalent ratio to find how long it would
take to sort 120 books. 45 books 120 books 90 minutes = x minutes
90 x 120 45 = 240 minutes
Slide 56
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part B How many hours will it take the class to sort 120
books?
Slide 57
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part B How many hours will it take the class to sort 120
books? 1 hour x hours 60 minutes = 240 minutes 1 x 240 60 = 4
hours
Slide 58
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part C Suppose their rate slowed to 30 books in 90
minutes. How long would it take the class to sort the 120 books?
Explain your reasoning.
Slide 59
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part C Suppose their rate slowed to 30 books in 90
minutes. How long would it take the class to sort the 120 books?
Explain your reasoning. 30 books 120 books 90 minutes = x minutes
90 x 120 30 = 360 minutes
Slide 60
Chapter 1 Review 14. EXTENDED RESPONSE Cesars sixth-grade class
sorted books in the library. The class sorted 45 books in 90
minutes. Part C Suppose their rate slowed to 30 books in 90
minutes. How long would it take the class to sort the 120 books?
Explain your reasoning. Reasoning: it would take the class 360
minutes or 6 hours to collect 120 books at the slower rate.
Slide 61
Chapter 1 Review Agenda Notes Homework Homework Practice OAA -
CH1a Due Tuesday, April 8 Final Exam Friday, April 25
