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Name
LESSON
Date
Class
Practice C
8-3 Proportions and Customary Measurement
Find each missing value.
1.
2.
feet ! 3 yards
3
3. 1!4! miles !
4. 2 gallons !
yards
1
5.
pounds ! 2!5! tons
7.
minutes ! 3!6! hours
9.
cups ! 5!4! quarts
cups
1
6. 2!4! days !
5
1
cups ! 52 fluid ounces
hours
2
8. 1!3! miles !
feet
10. 100 seconds !
hours
Compare. Write ", #, or $.
49
! pounds
11. !10
13. 3 miles
2
15. 6!3! feet
17. 11 gallons
3
12. 92 hours
3!4! days
5,280 yards
14. 10 quarts
20 pints
80 inches
16. 4 gallons
30 pints
80 ounces
40 quarts
2
18. 13!3! yards
40 feet
19. Becky is 5,781,600 minutes old, and Phil is 315,360,000
seconds old. Who is older? by how many days?
20. Maria drove 176,000 yards in 2 hours. How many miles per hour
did she drive on average?
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
29
Holt Middle School Math Course 1
Practice C
8-3 Proportions and Customary Measurement
Practice B
8-3 Proportions and Customary Measurement
LESSON
LESSON
Find each missing value.
Find each missing value.
108
1. 3 yards !
3.
13
64
540
9.
8
29
104
ounces
minutes ! 9 hours
48
hours ! 2 days
8.
3
gallons ! 48 cups
1
10. 36 inches !
cups ! 4 pints
weeks
6.
3
yards
!
13. 250 seconds
15. 56 ounces
17. 1.5 miles
"
"
14. 5 cups
4 minutes
1
18. 3#2# tons
2,500 yards
5.
4,400
7.
230
9.
21
"
cups ! 52 fluid ounces
32
4. 2 gallons !
yards
1
54
1
6. 2#4# days !
pounds ! 2#5# tons
5
2
8. 1#3# miles !
1
hours
8,800
feet
1
##
36 hours
10. 100 seconds !
cups ! 5#4# quarts
cups
Compare. Write !, ", or $.
1
"
3,080
minutes ! 3#6# hours
32 inches
40 fluid ounces
!
16. 38 hours
3.5 pounds
!
!
12. 2.5 feet
24 cups
1
6#2#
2.
feet ! 3 yards
3. 1#4# miles !
Compare. Write !, ", or !.
11. 4 quarts
9
1.
yards ! 87 feet
4. 2 years !
cups ! 104 fluid ounces
5. 4 pounds !
7.
2.
inches
1#2# days
6,000 pounds
1
19. Cassandra drank 8#2# cups of water during the mountain hike.
How many fluid ounces of water did she drink?
49
# pounds
11. #
10
!
13. 3 miles
!
5,280 yards
14. 10 quarts
!
20 pints
2
15. 6#3# feet
!
80 inches
16. 4 gallons
"
30 pints
"
18. 13#3# yards
17. 11 gallons
68 fluid ounces
12. 92 hours
80 ounces
"
2
40 quarts
3
3#4# days
"
40 feet
19. Becky is 5,781,600 minutes old, and Phil is 315,360,000
seconds old. Who is older? by how many days?
20. Stan cut a wooden plank into 4 pieces. Each piece was
18 inches long. How long was the plank before Stan cut it?
Becky is 365 days older than Phil.
20. Maria drove 176,000 yards in 2 hours. How many miles per hour
did she drive on average?
72 inches or 6 feet long
50 miles per hour
Holt Middle School Math Course 1
Reteach
8-3 Proportions and Customary Measurement
Challenge
8-3 Pro-portional Basketball
Use proportions to convert each professional basketball
measurement.
Weight
1 pound ! 16 ounces
1 ton ! 2,000 pounds
Time
1 minute !
60 seconds
1 hour ! 60 minutes
1 day ! 24 hours
1 week ! 7 days
1 year ! 365 days
1 leap year !
366 days
1
1
1
1
1
1
Capacity
cup ! 8 fluid ounces
pint ! 2 cups
quart ! 2 pints
quart ! 4 cups
gallon ! 4 quarts
gallon ! 16 cups
94 feet
11 feet
4
2 yards
5
6 yard
You can use the table below to solve proportions that involve
customary measures.
Length
foot ! 12 inches
yard ! 36 inches
yard ! 3 feet
mile ! 5,280 feet
mile ! 1,760 yards
Holt Middle School Math Course 1
LESSON
LESSON
1
1
1
1
1
29
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All rights reserved.
50 feet
28
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
10 feet
To figure out how many hours are in three days, set up a proportion,
where the first ratio uses 24 hours is 1 day, and the second ratio
uses a variable for the value you are trying to find.
24 hours
72 hours
## ! ##
1 day
x days
Court
24 hours
72 hours
## ! ##
1 day
x days
24x ! 72
Think: 72 " 24 ! x
Backboard
1
Then solve the proportion.
First, find the cross products.
length:
31#3#
width:
16#3#
yards
length:
6
width:
2#2#
2
Then, use a related math sentence
to solve the equation.
yards
x!3
Height:
feet
Diameter:
inches
15
inches
OFFICIAL
TIME
Use the table above to set up a proportion. Then find each of
the values.
1. the number of pounds in 80 ounces
2. the number of quarts in 6 gallons
x
##
80
4
## !
1
5 pounds
Min.
Max.
1
1
1
4
GAME
DAY
Quarts
Gallon
1
2
3
8
OFFICIAL
TIME
pounds
pounds
x
##
6
OFF
DAY
24 quarts
3. the number of yards in 5 miles
Ball Weights
4. the number of minutes in 20 hours
8,800 yards
Minimum:
1,200 minutes
Maximum:
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
feet
1
So, there are 72 hours in 3 days.
1
## !
16
Basket
120
30
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Holt Middle School Math Course 1
20
22
4
##
5
ounces
Game:
ounces
1
##
Overtime: 12
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
115
Official Times
31
hour
hour
Water Intake
Off Day
Game Day
8
cups
16
cups
Holt Middle School Math Course 1
Holt Middle School Math Course 1