Saxon Math Course 1 Summer Answer Key - The Dominican Campus

Saxon Math Course 1 Summer Answer Key Investigation 1 1) No. In the frequency table, the number of students who scored 20 is combined with the...

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Saxon Math Course 1 Summer Answer Key Practice Set 1

Practice Set 2

a)

5458

a)

$7.40

b)

$26.48

b)

0

c)

5206

c)

15,059

d)

$3.65

d)

$1.68

e)

6+8=14, 8+6=14, 14-6=8, 14-8=6

e)

16 R 8

f)

25-15=10, 10+15=25, 15+10=25

f)

78

g)

5; 12; 3

h)

8×9=72, 9×8=72, 72÷9=8, 72÷8=9

2)

235 people

4)

$1.25

6)

$2.55

2)

18

8)

887

4)

9

6)

$2.75 $9.00; I multiplied 75¢ by 12 and wrote the answer in dollars.

10) 4615 12) 262 14) 2941 16) $2.55 18) $1.50 20) Sum 22) 5+6=11, 6+5=11, 11-6=5, 11-5=6 24) 50-29=21, 29+21-50, 21+29=50

8)

10) 5504 12) $7.17 14) 625 16) 15 18) 20,000 20) $2.25 22) 36÷9=4, 4×9=36, 9×4=36 24) a. 15

b. 3

26) $2.34 28) 0 One way to check is to multiply the divisor by the quotient. The answer should equal 30) the dividend.

Saxon Math Course 1 Summer Answer Key Practice Set 3

Practice Set 4

a)

A = 33

a)

A = 13

b)

B = 28

b)

B = 22

c)

C = 39

c)

C = 105

d)

D=9

d)

D = 18

e)

e = 28

e)

w = 12

f)

f = 41

f)

m = 14

g)

g = 110

g)

x = 12

h)

h = 44

h)

n = 300

i)

n = 17

i)

show work

2)

37

2)

25 pennies; I divided 100 pennies by 4 to make equal groups.

4)

4)

21 teams

6)

$31.50

6)

2325 cans 39 points; Possible explanation: I subtracted 63, the number of points in the first half of the game, from 102, the total.

8)

K = 45

8)

32,560

10)

M = 18

12)

p = 13

14)

r = 24

16)

720

18)

2252

20)

$6.84

22)

The dividend is 36.

24)

17-8+9, 9+8=17, 8+9=17

26)

w = 16

28)

m=1 To find the unknown factor, divide the product by the known factor.

10) 51,800 12) 12 14) 9106 16) $9.74 18) B = 29 20) D = 17 22) x = 113 24) w = 13 26) 15×6=90, 90÷15=6, 90÷6=15 28) 15 ×8 = 120 To find the missing addend, subtract 30) the known addend from the sum. Early Finishers a) 500 gallons b) $1,445

30)

Saxon Math Course 1 Summer Answer Key

Practice Set 5

Practice Set 6

a)

17

a)

three fourths;

b)

9

b)

two-fifths;

c)

2

c)

three eights;

d)

18

d)

36

e)

2

e)

500

f)

8

f)

g)

5

h)

5

60 $1.20; Explain: $1.20 + $1.20 + $1.20 = $3.60

i)

(6 + 9) ÷ 3

g) h)

2)

102 kilograms

4)

6)

$3.00 To find the average number of pages she needs to read each day, divide: 235 pages divided by 5 days equals 47 pages per day.

8)

2)

180

4)

$7.92

6)

50 bills

8)

15,935

32

10)

32,712

10)

150

12)

$8.02

12)

6

14)

1

14)

108

16)

400 R 9

16)

7×9=63, 9×7=63, 63÷7=9, 63÷9=7

18)

w = 60

18)

$0.40

20)

N=7

20)

187,220

22)

P = 288

22)

n = 99

24)

m = 376

26)

y=6

28)

x = 32

30) 60 Early Finishers 6 gallons × N = $270; N = $45

24) 26)

$76.20

28)

2×4=8, 4×2=8, 8÷2=4, 8÷4=2 Show work Sample answer: How much money is of $3.60?

30)

Saxon Math Course 1 Summer Answer Key

Practice Set 7 in.

a)

Practice Set 8 a)

48 mm

b)

25 mm

b)

70 mm

c)

2 in.; 5.1 cm (or 5 cm)

c)

55 mm

d)

ray

d)

6 cm

e)

line

e)

5 cm

f)

segment

f)

15 cm

g)

A. inches

g)

Show work; drawings will vary

h)

C. kilometers

h)

B. feet

2)

274 days

2)

985 fewer cans; I subtracted 765 from 1750.

4)

117

4)

60 mm

6)

Three eights;

6)

218

8)

$25.25

8)

10)

42,582

10)

125

12)

50

12)

14)

w = 12

16)

267

14)

5 20×12=240, 12×20=240, 240÷12=20, 240÷10=12

18)

$11.52

16)

48 in.

20)

W = 42

18)

M = $3.52

22)

r = 155

20)

103 R 1

22)

a = 82

24)

192 You should have a line drawn that is inches long.

24)

in.

26)

9×10=90, 10×9=90, 90÷9=10, 90÷10=9

28)

w = 20

30) x= 4 Early Finishers a) 8 players b) $360

26) 28)

30)

x=9 One way to calculate the perimeter of a rectangle is to add the lengths of the four sides.

Saxon Math Course 1 Summer Answer Key

Practice Set 9

Practice Set 10

a)

12¢, $1.20, $12

b)

<

c)

>

d)

>

b)

…, 54, 63, 72, …Addition sequence. Add 9 to the value of a term to find the next term. …, 16, 32, 64, ….. Multiplication sequence. Multiply the value of a term by 2 to find the next term.

e)

<

c)

Odd

d)

72° F; 22°C

2)

156 years

4)

154 pounds

6)

$3.25

4)

111 years Length=2cm Width = 1cm Perimeter = 6cm

8)

Three fourths;

6)

$0.25 = 25¢

10)

36,500

8)

a.

12)

$37.44

10)

<

14)

426

12)

$18.24

16)

284

14)

2808

18)

W = $3.49

16)

304

20)

$33.60

18)

71 R 36

22)

n = 79

20)

a = 135

24)

b = 18

22)

c = 16

26)

d = 192

24)

5 cm

28)

12

26)

>

30)

32° F

a)

>

f) g)

2)

28)

30)

10 inches < 1 foot

<

b.

1 mm < 1 cm

> Since 5012 is less than 5120, point the small end of the symbol to the smaller number, 5012.

Saxon Math Course 1 Summer Answer Key

Investigation 1 No. In the frequency table, the number of students who scored 20 is combined with the number who scored 19 Each interval is two scores wide. One reason he might have arranged the scores this way is to group the scores by A's, B's, C's and D's

a)

4)

Make a frequency table

c)

5)

13-14

6)

19-20

7)

15-16 Make a frequency Table and a Histogram

1)

2)

b)

3)

8) 9) 10) 11) 12)

Softball D. Cannot be determined from given information Sample answer: Consider only girls' responses; consider only boys' responses Consider eliminating some choices while adding others

d)

Make a Histogram and answer the questions Survey your class: You do not have to conduct the survey, but you should be able to answer the questions about how you would do so.  Depths: -400, -280, -245, -230, -65  Bar graph: Yes  Data correct? No; the depths of Lakes Michigan and Ontario have been switched  Lake Superior is 335 m deeper than Lake Erie  The depth of Lake Michigan is closer to the depth of Lake Ontario.  Lake Michigan is 50m deeper than lake Huron