Download Fractions, Decimals, and Percents

LESSON
Name
71
Teacher Notes:
page 457
• Review Hint #17 “Percent.”
• Fractions, Decimals, and
Percents
• Review “Fraction-Decimal-Percent
Equivalents” on page 19 in the
Student Reference Guide.
• Review reference chart “FractionDecimal-Percent Equivalents.”
New Concept
• A part of a whole can have different names.
• Fractions, decimals, and percents are three ways to name
part of a whole.
Fraction
1
_
of the circle is shaded.
2
Decimal
0.5 of the circle is shaded.
Percent
50% of the circle is shaded.
• Fractions, decimals, and percents all have numerators and
denominators.
Part of a Whole
1
2
Rules to Find Denominator
The denominator of a fraction can be any number (except 0) and is
expressed as a fraction.
The denominator of a decimal number is shown by the number of
digits to the right of the decimal point.
0.5
© 2008 Saxon
50%
Math Language
5 and ____
50
Both ___
10
100
1.
are equal to __
2
• One digit to the right means a denominator of 10.
• Two digits to the right means a denominator of 100.
• Three digits to the right means a denominator of 1000.
The denominator of a percent is always 100.
• To write a decimal or a percent as a fraction, find the
denominator.
5
0.5 = ___
10
50
50% = ____
100
• Remember that your fraction pieces have the fraction
name, decimal name, and percent name printed on them.
Saxon Math Intermediate 5
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463
Adaptations Lesson 71
11/5/07 12:58:33 PM
New Concept, continued
Activity 1
page 459
Using Fractions and Decimals
• Use your textbook to complete this activity.
Activity 2
page 460
Writing Fractions, Decimals, and Percents
Use your textbook to complete this activity.
Lesson Practice
Use fraction pieces to answer the problems.
Remember to write the percent symbol in percent problems.
a. Shade 25% of the circle.
b. Write both 20% and 0.2 as fractions.
The denominator of a percent is 100.
20% =
One digit to the right means a denominator of 10.
20% =
What decimal part of the circle did
you shade?
.
c. This square is divided into 100
equal parts, and 33 parts are shaded.
d. Refer to problem c.
Write the shaded portion as a fraction,
as a percent, and as a decimal.
Compare:
1
__
3
0.33
0.33 is
l
than 3_1
fraction:
because 3 times 33 parts is
percent:
parts, which is
decimal:
Saxon Math Intermediate 5
SM_H5_AD_L071_FF.indd 464
© 2008 Saxon
How did you determine the comparison?
than the whole square.
.
464
Adaptations Lesson 71
11/5/07 12:58:36 PM
page 461
Written Practice
$7.98
1.
$ .
2. (6 ×
)×
=
6
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3. Martin
5
half-dollars = $1
4.
sister (Martin ÷ 2)
5 dollars
×
next year (sister + 1)
half-dollars in $1
as
Since Martin is t
old as his sister, I used the equation
m=
half-dollars in $5
.
© 2008 Saxon
Use work area.
5.
6. factors of 7:
rolls
×
40
each
+
,
How many factors are there?
Saxon Math Intermediate 5
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465
Adaptations Lesson 71
11/5/07 12:58:39 PM
page 462
Written Practice, continued
7. not equal to 2_1
6
A ___
12
1
__
B
2
7
___
1
__
15
2
C
8
___
1
__
16
2
D
9
___
1
__
18
2
8. “Faster” means fewer seconds.
Allison
Amy
_1
2
of 60 seconds
28.72 seconds
Half a minute is equal to
and 28.72 seconds is
seconds,
l
than
seconds.
was faster because she swam for fewer seconds.
Use work area.
10. thousandths place
9. mixed number and decimal number
1.234
1
2
3
.
11. See page 12 in the Student
12. 5_4 of a dollar
100 ¢
© 2008 Saxon
Reference Guide.
_________
)1 0 0
4
5
.
Saxon Math Intermediate 5
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466
Adaptations Lesson 71
11/5/07 12:58:40 PM
page 462
Written Practice, continued
___
13. Find AC.
14. 12.3
12.30
Label this figure with the information you know.
12.3
A
B
C
12.30
?
Use work area.
15.
$5.37
$8.95
$0.71
+ $0.39
16.
$60.10
− $48.37
18.
$1.75
19.
115¢
+ $0.00
© 2008 Saxon
21. $39.00 ÷ 50 =
13 + ____
14 =
22. ____
100 100
20. $0.760
×
40
23. Borrow and rename.
3 − 1__
1 =
7 − 6 __
5
5
____
SM_H5_AD_L071_FF.indd 467
$9.840
× 150
−
)100
Saxon Math Intermediate 5
17.
467
Adaptations Lesson 71
11/5/07 12:58:42 PM
page 463
Written Practice, continued
24. a. Find the function.
They are saving
their earnings.
$
Total Amount
Earned
Earnings Left After
Savings
$12
$10
$9
$7
$8
$6
from
b. Use your rule from part a to solve.
a.
25. Remember to write the dollar or cent sign.
Use work area.
26. 1, 3, 9, 27,
b.
,
,…
Is the sequence arithmetic or
geometric?
or
See
page 251.
Use work area.
Use work area.
27. probability
28. Write as unreduced fractions.
G
0.4 =
P
R
R
R
Y Y Y Y
P
a. yellow
40% =
b. not yellow
a.
b.
and
Round 1461 to
are both names for parallelograms
,
Use work area.
Saxon Math Intermediate 5
SM_H5_AD_L071_FF.indd 468
and then
–
with perpendicular sides.
468
and 1422 to
=
s
.
© 2008 Saxon
30. Round to the nearest ten.
29. Perpendicular is square corners.
years
Use work area.
Adaptations Lesson 71
11/5/07 12:58:44 PM
LESSON
Name
72
Teacher Notes:
page 464
• Review Hint #39 “Area and
Perimeter Vocabulary.”
• Review “Perimeter, Area,
Volume” on page 17 in the
Student Reference Guide.
• Area, Part 1
New Concept
• To find the area of a rectangle, use this formula:
A=l×w
(Area = length × width)
Math Language
The area is the
number of square
units needed to
cover a surface.
• “Cover” is a keyword for area.
• Label area as “square” units.
• The abbreviation for “square” is “sq.”
Activity
page 466
Using Area Models
• This activity is optional.
Example
Area = l × w
Area = 3 in. × 2 in. = 6 sq. in.
2 in.
3 in.
© 2008 Saxon
• To estimate the area of a rectangle, round the length and
width before multiplying.
Example
12 ft 8 in.
14 ft 3 in.
Saxon Math Intermediate 5
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469
14 ft 3 in.
12 ft 8 in.
14 ft
× 13 ft
182 sq. ft
Adaptations Lesson 72
11/5/07 1:03:34 PM
Lesson Practice
What is the area of each rectangle?
b.
a.
3 ft
3 cm
3 ft
4 cm
c.
d.
2 in.
2m
5 in.
1m
Use the information below to answer problems e–g.
Lola’s bedroom is 10 feet wide and 12 feet long.
10 ft
12 ft
e. What is the perimeter of Lola’s bedroom?
P = 2l + 2w
f. Circle the unit used to show the area of Lola’s bedroom.
or
cubic feet
g. What is the area of Lola’s bedroom?
A=l×w
h. Estimate the area of the classroom floor. Measure the length and width of your
© 2008 Saxon
square feet
classroom to the nearest foot.
Saxon Math Intermediate 5
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470
Adaptations Lesson 72
11/5/07 1:03:37 PM
page 469
Written Practice
juice boxes
1.
×
boxes
2.
×
c price per box
$10.00 total cost
cents each
total cost
4c =
40¢ ×
=t
c=
t=
Use work area.
3. 4, 5, 8, 9, 12, 13,
,
,
Use work area.
4. To find 3_1, divide by 3.
,…
_____
)
à1
4,
à3
5,
8,
9,
12,
13,____, ____, ____, ...
Use your fraction-decimal-percent
pieces.
___
3
=
percent
Use work area.
5. 1 meter = 100 centimeters
© 2008 Saxon
5 meters =
6. 12.25
centimeters
words:
Use work area.
Saxon Math Intermediate 5
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471
Adaptations Lesson 72
11/5/07 1:03:39 PM
page 469
Written Practice, continued
7. Write a fraction as your
answer.
8. factors of 16:
1 = ___
__
2 12
9.
,
,
,
,
See page 12 in the Student
Reference Guide.
.
Use work area.
10. Which digit is in the ones place?
11. Write the quotient as a mixed number.
100
____
436.2
3
=
___
13.
Label this figure.
F
14.
$80.00
– $72.47
?
15.
G
$4.97
×
6
H
16.
375
× 548
$10.35
$
.
$
.
$
.
+$
.
17. short division
_____________
7 ) $4
Saxon Math Intermediate 5
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472
0 . 5
3
© 2008 Saxon
12. Find FG.
Adaptations Lesson 72
11/5/07 1:03:41 PM
page 470
Written Practice, continued
18. Cancel matching zeros.
_______
_____
_____
60 ) 5 3 4 0
3 + 1 __
1 + 4 __
4=
20. 3 __
8
8
8
19. 30m = 6000
)
6)
m=
21. Borrow and rename.
3 – 5 – 1 __
1 =
7 __
4
4
22. 55.5
1 + 10 ___
1 =
1 + 5 ___
23. 4 ___
10
10
10
5.55
55.5
05.55
Use work area.
24. Borrow and rename.
1 =
10 – 4 + 1 __
25. This rectangle is half as wide as it is long.
What is the perimeter of the rectangle?
8
© 2008 Saxon
cm
1
2
3
4
5
26. Area = length × width
Saxon Math Intermediate 5
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473
Adaptations Lesson 72
11/5/07 1:03:43 PM
page 471
Written Practice, continued
27. Label the spinner.
28. Graph the data.
1
A = __
2
Average Annual Precipitation
1
B = __
4
14
C=D
12
10
Amount
(inches)
8
6
4
bu
qu
er
qu
e,
N
M
2
Al
City and State
Use work area.
Use work area.
29. Round to the nearest dollar.
milk
2.59
bread
2.39
cereal
4.89
juice
2.39
11.89
eggs
1.99
butter
2.29
a.
b.
© 2008 Saxon
vitamins
c.
30. Count forward by minutes.
Saxon Math Intermediate 5
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474
Adaptations Lesson 72
11/5/07 1:03:44 PM
LESSON
Name
73
Teacher Note:
page 472
• Refer students to “Decimal
Arithmetic Reminders Chart” on
page 9 in the Student Reference
Guide.
• Adding and Subtracting
Decimal Numbers
New Concept
• To add or subtract decimal numbers:
1. Line up the decimal points.
2. Fill empty spaces with zeros.
3. Add or subtract digits with the same place value.
Example
3 . 45
à6.7
61
6.7
Ľ 3.45
3.25
10.15
• Sometimes you will need to use rounding or compatible
numbers to add or subtract decimal numbers.
Example
Rounding:
14.63
– 8.71
Compatible numbers:
14.5
– 8.5
6.0
14.63
– 8.71
6
14.63
– 8.63
6.00
6
We used 8.63 because it’s compatible
nearest half.
with 14.63 and close to 8.71.
© 2008 Saxon
We rounded both numbers to the
Saxon Math Intermediate 5
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475
Adaptations Lesson 73
11/5/07 1:06:40 PM
Lesson Practice
Add.
Fill empty spaces with zeros.
a.
3.4
6.7
+ 11.3
b.
4.63
2.50
+ 0.46
c.
9.62
12.50
+ 3.70
0
e.
5.37
− 1.60
f.
0.436
− 0.200
00
Subtract.
d.
3.64
− 1.46
Line up the decimal points and solve. Show your work.
g. 4.2 + 2.65 =
+
i.
h. 6.75 − 4.5 =
4.20
6.75
−
4.3 3
4.34
Estimate the perimeter of this square.
2.4 cm
j.
The distance from Rodrigo’s house to school is 0.8 mile.
How far does Rodrigo travel going from his house to school and back again?
0.8 mi
School
© 2008 Saxon
Home
Saxon Math Intermediate 5
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476
Adaptations Lesson 73
11/5/07 1:06:43 PM
Written Practice
1.
page 475
$0.39
00
2. brother
18
Ling ( 2_1 of brother )
sister (Ling − 2)
÷
(
Ling’s sister is
)–
=
years old.
Use work area.
3.
33.4
4. Area = length × width
to
back
40 ft
total
30 ft
a.
6. _1_ of _1_ =
2 4
© 2008 Saxon
5. Shade these circles.
_2_ =
8
percent
_1_ =
4
percent
b.
Think of quarters.
Saxon Math Intermediate 5
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477
Adaptations Lesson 73
11/5/07 1:06:44 PM
page 476
Written Practice, continued
___
7. Find BC.
Label the figure.
A
B
?
8. Write the length and the units in
words.
C
9. factors of 16:
,
,
,
,
Cross out the numbers that are not factors of 20.
cm 1
2
3
,
Use work area.
10. 3y = 12, so y must equal
Now what does 2y equal?
.
11. 12.0
,
1.20
12.00
1.20
Use work area.
with zeros.
13.
$6.48
×
9
14. Add digits with the
4.5
+
SM_H5_AD_L073_FF.indd 478
$5.00
same place value.
53.46
− 5.70
Saxon Math Intermediate 5
15.
478
− $0.70
4.3
© 2008 Saxon
12. Fill empty spaces
Adaptations Lesson 73
11/5/07 1:06:49 PM
page 476
Written Practice, continued
16.
__________
5 ) $8 . 6 0
20. 30w = 9870
17.
18.
__________
20 ) $8 . 6 0
1=
21. 12 + 1 __
378
× 296
19.
1=
22. 12 − 1 __
2
2
80000
×
500
49 =
49 + ___
23. ___
99
99
w=
1 hrs
2 __
2
24. a.
25.
1 hrs
− 1 __
2
$5.50 total hours worked
b.
×
per hour
paid in all
First, I
a
© 2008 Saxon
Frequency
Bicycle riding
5
Roller-skating
7
Soccer
6
Swimming
10
Walking
5
Basketball
2
Aerobics
4
a. What fraction of the 39 girls chose
swimming?
the hours
b. What fraction of the girls did not
choose bicycle riding or rollerskating?
that Morgan worked, and then I
m
the total number of
h
by his hourly rate.
Find the fraction of girls who did choose
bicycle riding and roller-skating.
39
Then subtract from __.
39
a.
Saxon Math Intermediate 5
SM_H5_AD_L073_FF.indd 479
Type of Exercise
b. Use work area.
479
a.
b.
Adaptations Lesson 73
11/5/07 1:06:51 PM
page 477
Written Practice, continued
10 ft 3 in.
26. Estimate the area.
10 ft 3 in.
27. $14. 8 5
ft
$
1
tip is _ of that
5
Area = length × width
28. Draw a rhombus that has a right
angle.
29. 7:59:10 is written in hour: minute: second form.
Hours
See pages 15 and 16 in the Student Reference
Guide.
Minutes
Seconds
+
Regroup more than 60 minutes as an hour.
Use work area.
30. Sketch a line graph to display the data from the table.
Hourly Temperatures on Monday
Hourly Temperatures on Monday
8:00 a.m.
64
9:00 a.m.
65
10:00 a.m.
67
11:00 a.m.
69
12:00 p.m.
72
1:00 p.m.
76
2:00 p.m.
80
3:00 p.m.
85
86
68
66
64
00
8:
am
9:
00
am
00
am
© 2008 Saxon
Temperature (°F)
Temperature
(˚F)
Time
:
10
Time
Use work area.
Saxon Math Intermediate 5
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480
Adaptations Lesson 73
11/5/07 1:06:52 PM
LESSON
Name
74
Teacher Note:
page 479
• Review “Equivalence Table for
Units” on page 1 in the Student
Reference Guide.
• Units of Length
New Concept
• Use the tables below to help convert units of length.
Equivalence Table Units of Length
U.S. Customary System
12 in. â 1 ft
Metric System
10 mm â 1 cm
3 ft â 1 yd
1000 mm â 1 m
5280 ft â 1 mi
100 cm â 1 m
1760 yd â 1 mi
1000 m â 1 km
A meter is about 3 inches longer than a yard.
1 yd
1 ft
12 in.
1 ft
12 in.
1 yd
3 ft
36 in.
1 ft
12 in.
Example
Two yards is how many inches?
yd
1
2 = ___
___ __
36
in. ?
36
× 2
72
Two yards equals 72 inches.
• To estimate equivalent lengths, round or use compatible
numbers.
© 2008 Saxon
Example
About how many meters is 197 centimeters?
The chart shows that 100 centimeters is the same length as 1
meter.
Round 197 centimeters to 200 centimeters.
Then divide by 100.
200 centimeters ÷ 100 = 2 meters
Saxon Math Intermediate 5
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481
Adaptations Lesson 74
11/5/07 1:09:22 PM
Lesson Practice
_1
4
a. How many yards are in one fourth of a mile?
1
_
of 1760 =
To find 4, divide by 4.
b. Fifty millimeters is how many centimeters?
Multiply the loop. Divide by the outside number.
cm
____
?
_1_
___
mm 1 = 50
c. Dyami’s height is 5 feet 1 inch.
How many inches tall is he?
1 ft =
in.
×
(
) + = ______
d. A 10K race is a 10-kilometer race.
How many meters is 10 kilometers?
km
___ _1_ = 10
___
m 1
?
______
e. The length of a pencil is best measured in
A centimeters
B meters
.
C kilometers
f. The height of a skyscraper is best measured in
D feet
.
A inches
Saxon Math Intermediate 5
SM_H5_AD_L074_FF.indd 482
B feet
C miles
482
D centimeters
© 2008 Saxon
A skyscraper is a very tall building.
Adaptations Lesson 74
11/5/07 1:09:24 PM
page 482
Written Practice
(6 ×
1.
10
) × 12 =
2.3
2.
10
+
10
10
10
10
3.
.
3
__
6
4.
price per pound
6
___
12
_____
)
×
7 pounds
$3.43 total cost
7g =
g=
Use work area.
Use work area.
5. Multiply the loop.
mc __
2
1
__
___
cm 1 = ?
6. Split the difference.
Name the point:
7. 11.02
words:
• as a fraction.
© 2008 Saxon
• as a decimal.
0
1
.
Saxon Math Intermediate 5
SM_H5_AD_L074_FF.indd 483
483
Use work area.
Adaptations Lesson 74
11/5/07 1:09:24 PM
page 482
Written Practice, continued
8. Multiply the loop.
9. Find ST.
Label the figure.
10.
R
11.
7
3
__
+ 14
14.
30.1
– 14.2
18. 12 × 12 =
15.
S
5
3 ___
12.
12
5
– 3 ___
12
with zeros.
4
16.
$12.00
$
.
$
.
$
.
$
.
$
.
16.2
+ 1.25
4384 =
17. _____
8
______________
6 ) $4
T
13. Fill empty spaces
4
1
– 2 __
$12.98
×
40
19.
?
5 . 5
4
20. Write the quotient as a
mixed number.
18
___
5
=
© 2008 Saxon
yd __
3
1 = __
___
in. 1
?
+ $00.00
Saxon Math Intermediate 5
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484
Adaptations Lesson 74
11/5/07 1:09:26 PM
page 483
Written Practice, continued
21. Write a decimal number that is equal to 2.5 and has three decimal places.
See Example 1 on page 444.
.
22. a. perimeter of square = 4 × side length
perimeter = 24 in.
each side =
in.
?
b. Area = length × width
area =
×
a.
area =
23.
b.
Grapes
Grapes
Per Pound
Per Pound
Use work area.
24.
a. Which street runs straight north
and south?
Ramona
N
Tyler
y
Valle
© 2008 Saxon
Garvey
a.
W
b. Which street is parallel to
Ramona?
E
S
c. Which street is neither
perpendicular nor parallel to
Garvey?
b.
c.
25.
Z,
X,
V,
T,____, ____, ...
OPQRSTUVWXYZ
Use work area.
Saxon Math Intermediate 5
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485
Adaptations Lesson 74
11/14/09 12:21:38 AM
page 484
Written Practice, continued
27. Shade 2_1.
26. a. One foot is what fraction
of a yard?
1 =
__
2
b. One foot is what percent
of a yard?
a.
percent
b.
28.
11
10
12 1
11
10
2
9
3
7
6
2
9
4
8
12 1
3
4
8
5
7
6
5
Morning time is
Evening time is
:
:
From the morning time to noon is
hours and
minutes.
+
hours
minutes
hours
minutes
hours
minutes
hummingbird
29.
–
hours and
30. 1 mile =
minutes.
yards
_____
)
degrees cooler
© 2008 Saxon
From noon to the evening time is
1
To find 4_, divide by 4.
crocodile
Saxon Math Intermediate 5
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486
Adaptations Lesson 74
11/8/07 1:15:51 PM
LESSON
Name
75
Teacher Notes:
page 485
• Introduce Hint #45 “Improper
Fractions.”
• Review “Mixed Numbers and
Improper Fractions” on page 18 in
the Student Reference Guide.
• Changing Improper
Fractions to Whole or
Mixed Numbers
• For additional practice, students
may complete Targeted Practice 75.
New Concept
• A proper fraction is less than 1.
• An improper fraction is equal to or greater than 1.
Less than 1
Equal to 1
Greater than 1
3
__
4
__
5
__
4
4
4
Proper fraction
Improper fractions
• To convert an improper fraction:
1. Divide the denominator (bottom number) into the
numerator (top number).
2. Write the remainder as a fraction.
3. If necessary, add the mixed number to the whole
number.
Example
3
6 __
2
6
+
1
__
6 + 2)3
© 2008 Saxon
Convert the improper fraction.
3
__
2
R1
Write the remainder as a fraction.
1 = 7__
1
6 + 1 __
2
Add the mixed number to the whole number.
2
• Think of improper fractions as “top heavy” fractions.
Saxon Math Intermediate 5
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Adaptations Lesson 75
11/5/07 1:11:58 PM
Lesson Practice
Convert each improper fraction. You may use fraction pieces.
_____
b. _5_ =
2
)
)
_____
3 =
e. __
2
)
_____
10 =
h. ___
3
a. _2_ =
2
)
9 =
d. __
4
g. _6_ =
3
)
4 =
j. __
3
_____
)
_____
c. _5_ =
3
)
_____
3 =
f. __
3
)
i. _4_ =
2
)
_____
)
_____
)
7 =
k. __
3
_____
_____
_____
_____
)
15 =
l. ___
4
Add. Simplify each answer.
4=
4 + __
m. __
5
5
1 + 8 __
1=
1 + 8 __
n. 8 __
3
3
3
o. _5_ + _3_ =
8 8
p. 7 _4_ + 8 _7_ =
8
8
q. What is the perimeter of a square with sides 22_1 inches long?
1
2 2 in.
1.
$0.49
22$2.10
page 488
$2.39
2. Find the average.
12
13
17
22$2.39
Saxon Math Intermediate 5
SM_H5_AD_L075_FF.indd 488
488
_____
)
© 2008 Saxon
Written Practice
Adaptations Lesson 75
11/5/07 1:12:01 PM
page 488
Written Practice, continued
3. Arrange from least to greatest.
,
,
32.16
32.61
31.26
31.62
1
2
3
4
4. largest
,
greatest
even
−
least
difference
Use work area.
5. mixed number and
decimal number
6.
3
__
4
4
__
3
7. Write 4.5 with the same
number of decimal places as
6.25.
See Example 1 on page 444.
.
Use work area.
.
8. Split the difference.
Name the point:
0
1
2
• as a mixed number.
• as a decimal number.
© 2008 Saxon
.
9. 1 kilometer =
km
m
1
__
meters
5
= __
?
Multiply the loop.
Saxon Math Intermediate 5
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Adaptations Lesson 75
11/5/07 1:12:02 PM
page 489
Written Practice, continued
10. Find PR.
P
Q
R
Label the figure.
?
12
___
12
11.
12. Fill empty spaces with zeros.
60.45
−
−0
I can check my answer using the
equation
+
13. Add digits with the same
=
12
__
12
.
.
14. 3d = $20.01
place value.
Multiplication
36 × 9 × 80 =
4.8
+
15. Associative Property of
.
d=
506
× 478
18.
$30.75
×
8
Saxon Math Intermediate 5
SM_H5_AD_L075_FF.indd 490
_____ =
17. 4690
70
19.
$10.00
$
.
$
.
$
.
+ $
.
490
© 2008 Saxon
16.
Adaptations Lesson 75
11/5/07 1:12:04 PM
page 489
Written Practice, continued
5=
5 + __
21. __
9
9
4=
4 + __
20. __
5 5
22.
2
16 __
3
2
+ 16 __
3
=
Convert.
Convert.
23. Perimeter = 4 × side length
Convert.
12 in.
Find the perimeter in inches.
Each side is what percent of the perimeter?
24. Area = length × width
a. Find the area in square feet.
a.
b. Find the area in square inches.
b.
25. A rhombus has four congruent sides.
© 2008 Saxon
26. median
middle
mode
most
range
span
Day
Miles
Monday
41
Tuesday
67
Wednesday
13
Thursday
44
Friday
25
Use work area.
Saxon Math Intermediate 5
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Adaptations Lesson 75
11/5/07 1:12:05 PM
Written Practice, continued
page 490
27. Use the graph to answer parts a–c.
a. range
span
−
Temperature (F)
greatest temperature
lowest temperature
range
b. How many months have an average
temperature greater than 70ºF?
Average Summer Temperatures
in Portland, ME
70
69
68
67
66
65
64
63
62
61
60
June July August
Month
July
c.
−
47°
a.
lower
b.
January
c.
28. Name the coin that is equal to half of a half-dollar.
29. Use a centimeter ruler to measure.
a. Perimeter = 2l + 2w
b. Area = length × width
a.
b.
30. Richard
Detrina
Pat
3 more hours than Richard
2 hours less than Detrina
A 7+3+2
B 7 − (3 + 2)
C (7 + 3) − 2
D 7−3−2
Saxon Math Intermediate 5
SM_H5_AD_L075_FF.indd 492
© 2008 Saxon
7 hours
492
Adaptations Lesson 75
11/5/07 1:12:07 PM