September Math

Page 1

Name

Comparing and ordering fractions

Order These Write in order from least to greatest. Use scratch paper if necessary. Sometimes I use a number line and sometimes I use

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321 8'5'4

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7 D. 99 4'5'10

131 3'8'4

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FS-10219 Pre-Algebra


Name

Adding and subtracting fractionr

Watch the Signs Add or subtract. Write your answer in the simplest form. A.

I

6

10

11

+54

+ t't2

13 4

tI

15

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1

3

+5 1

13

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-ls

7

9

12

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FS-l0219 Pre-Algebra


Name

Adding mixed numbers

Mixed Number Sums I have to find the

Add. Write your answer in the simplest form. A.

sL

+Z\b

B.

^7 on

o

*zft

+b^5a

1:b ^1 +o,

??

4I

g?

*b;^35

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^1 +o,

-3 *5a

*83

a1 t3

63

-1 c2

2L

42o

1l

2!

13

*1+

*31

+11 1b

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2+

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ft+

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F.

*e

6+

D.

E.

?#

123

+

C.

least common denominator

Frank Schaffer Publications, lnc.

11

5

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+ t.1 20

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+

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FS-10219 Pre-Algebra


Name

Subtracting mixed numbers

Mixed Number Differences Subtract. Write your answer in the simplest form. A.

8;Ac

-41 B.

c.

tr

b;o n7 "g

o

4i6 n2 3

o7

"g

8?

i

"3

-1

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1

2

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3

63

o

D.

"10

-4

E.

_3

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-+

^310 \t

-2

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216 - ^3

-^310

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-43

p?3 8*

_o9

17

4L

14*

e1

-21

o2

^1 -o,

8l

"16

"3

20

Did you remember to find the least common denominator? Did you regroup when you

needed to?

@

Frank Schalfer Publications, lnc.

21

FS-10219 Pre-Agebra


Name

Adding and subtracting fractions

Fraction Practice Add or subtract. Write your answers in the simplest form. A.

5 3

'

10

t5

B.

tr

+1ib

c.

13

1

i

r' 08 "17 -\-_ \ \

D.

6 _t_

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12 F

+4 ib

11

14

11 ,7

*31

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4t

4

-8

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tr

16fi

^3 +ba

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8+ *3 *

6+

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Frank Schaffer Publications, lnc

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+ ro

22

FS-10219 Pre-Algebra


actions

Name

Multiplying fractions

Products From Fractions Multiply. Divide any numerator and denominator by a common factor to make the fractions easier to multiply. Write your answers in the simplest form.

)

tsi -a-= iP

:

r-

d(::! J

i

c.

B.

F.

lJ.

H. l.

J' K.

57

47

325

74

211

-a-= 821

11 24 -o-= -a-= 712

7.5=

27 -a-=

108

i'3

=

5-1

22

Fa-=

L. 1 .9.9 = 357 @

65

=

Frank Schafier Publications, lnc.

78

815

-a-= 516

515

-a-= 38

523 2310

-a-a-=

910

169 -o-=

52

32

-o-= 56

720

-o-821

-a-= 35

26 35

-a-=

-a-= 49

41 -O58

-o-= 72

53

-

-o-= 85

-a-_710

9.?

z.g 87

34

723 sa-= 11 42

D. 9.5= 26 E.

A. !.! 49

=

73

127 -a-43

52

-O-

=

13

-a-= 38

42 57

-O-=

614

-o-= 715

94

103 -a-= 45

38

-a-=

341

-a-a-= 453 FS-'10219 Pre-Algebra


Name

Multiplying mixed numbers

Mixed Number Multiplication Find the products. Rewrite mixed numbers as improper fractions before you multiply. Write your answers in the simplest form. A.

i;? .16

.7

rfr, rl

^2 -3

B.

la-O-

=

1

4

=

20.3

=

sf.o=

s.s]=

c.

-1 I-a-= 3 '7 I

D.

t].so

=

c!.26 = -2

3-2f -

=

s].to=

-1 I -a- 6 '311

F ,?'o I=

sl. zl

*L.t=

G' +fr. zz =

18'7

E.

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8',3

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=

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=

zs =

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ts.aJ=

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+t.

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=

s

f.to

=

Frank Schaffer Publications, lnc.

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*'r3= 24

to

=

62r.. 24 =

FS-10219 Pre-Algebra


Dividing fractions

How Many Equal Parts? 'lhfiuftle fractions, rewrite the problem and multiply

Eft

I I i..L+ 2+ ii.

A.

i

9.1= 9'5

77 8'8

-:2'4

1.3 =

55 _:_ 6' 12

21 = 3'3

71

ii

,irl

tvf-

4i

: -

i ,-.., _ a,i\ \:'':" ,i''^'

i

B.

-i.-

D.

4.1_ 5'8

E. t.z5'5 F.

11 3'2

-l-

=

11 _:_= 3' 12 31 4'8

31 8' 10

1. 1=

3'9

11 9'3

72

11 10'5 -g-

H.

52 -:6'3

=

4.1= 10' 5

l.

51 -:8'4

=

2.9._ 2'4

10' -:-

53

2'8 =

-3-

K. !.? = 10'5 @

Frank Schatfer Publications, lnc.

12

53

q.q_ 8'4

12'

3 =

31

-

13

-::2' -1A =

51 -:4'8

=

't7

39

10' 10 -:5'4

=

-_:_2' 'to =

G.

J.

by the reciprocal of the divisor. Circle

quotient in the simplest form.

5'

-3_

=

25

10 =

9.9 8'4

_

FS-10219 Pre-Algebra


Dividing mixed numbe

Name

Mixed Number Division Change the mixed numbers to improper fractions. Then multiply the first fraction by the reciprocal of the second fraction. Circle each answer in the simplest form.

A'

C. -5..5oo I

a

.

I a-

D' 1s+t|= E.

2.11 3' '3-

F.

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+2 *

+t+z=

z1=

B' o] +r 2t=

et+a=

s]+rf=

o+tfr=

o]+s=

ro J + 4?=

=

e]+r$=

27+2=

^1 .5_ 6 "3

1e+z| A

G' t|+ +|=

e]+r$=

7.n1

H. zu= ^1 ..1_ tr-

1o+s]=

47+4= c

''

2t * u?=

zt

+ttu =

g'"2 )

^!oo' ^?--

J^

'Va

J. zla*s * =

sl+ z=

o**g*=

K'

. 1 .3'10'5-

ot+r] =

@

s+sJ=

Frank Schafier Publications, lnc.

26

FS-10219 Prs-Algel


Name

ld numbers

Problem solving with fractions

Georgina's Famous Chili Here are the ingredients Georgina uses in her chili.

DN

m.

II

Georgina's Famous -I Chili

I

2

I

,t.rp onion S ] tO. ground beef

I

1

4

] tbsp. oil

3

trp. pepper

3 2

] cups diced tomatoes

*.rp

t

cups kidney beans tsp. salt

tomato paste

tbsp. chili powder

cloves garlic

Revise the amount of each ingredient to serve the number of people shown.

lngredient oil

16 servings r..

.ri.

4 servings

,.

.:

I

i:,t:Li

j

20 servings i:

6 servings

| ,.. i';..j

onion

ground beef tomatoes tomato paste kidney beans salt

pepper chili powder garlic

I

Pre-Algobra

@

Frank Schaffer Publications, lnc

27

FS-10219 Pre-Algebra


Making a frequency tab

Name

How Many Vowels? Complete the frequency distribution table by tallying the vowels in the following paragraph. (The cumulative fiequency is the sum of the frequency and all the frequencies above it on the table.) The alphabet consists of 26 letters. Five of them are vowels. Some vowels are used more often than others. Which do you think is used most in this paragraph?

Vowels Used in EverydaY Writing

Use the frequency table to answer the questions. A. How many vowels were used in the paragraph?

B. How many more times was o use than u?

D. Was e used more often or less oftt

c. Altogether, how many times were

than the other vowels combined?

a and e used in the paragraPh?

E. Write a question that can be answered by reading the frequency table. Then answer i

O Frank Schaffer Publications, lnc

28

FS-10219 Pre-Alge


Name

Making a line plot

Line Up A line plot shows how numbers are distributed. Make a dot on the line plot to record each height listed in the box. Then cross off the number in the box.

raph. it

Heights of Students in Ms. Gagnon's Class (inches)

'l__l

.56 59 55 60

tu ttit"

l

lncy

59 59 66 57

52 63 60 67

57 64 66 57

58 59 57 61

57 61 64 58

63 57 58 59

I I

--l

55 56 57 58 59 60

61

height in inches

Use the line plot to answer the questions.

A. Which height is most common to

B. What is the difference (in inches) between the shortest and the tallest student in the class?

this class?

c. How many students are 63 inches r used

tall or taller?

D. How many students are 56 inches

tall or shorter?

= E. How many students are between

s often

54 and 62 inches tall?

F. Which heights on the line are not represented by the students in Ms. Gagnon's class?

€d?

wer it.

rre-Algebra

F. Write something you know from reading the line plot.

6

Frank Schatfer Publications, lnc.

29

FS-10219 Pre-Algebra


Making a stem-and-leaf plot

Name

Stem-and-Leaf Plots Make a stem-and-leaf plot to organize the test scores listed in the box. In the sfem column, write the tens digits of the scores in order from least to greatest. ln the leaves column, write the digits that go with the tens digits in order from least to greatest. Gross off each number as you record it.

6ffi

Test Scores for Ms. Woo's Math Class

.56' t-5$"" 74 82 65 76 82

67 95 87 BB 79 90

g3 95 74 88 86 80 90

68 78 92 95 B9

76 92

Use your stem-and-leaf plot to answer the questions.

A. What was the lowest score?

B. What was the highest score?

c. How many students scored 90

D. How many students scored below 70?

or above? F.

E.

How many students scored between 70 and 89, including 89?

Grade Record

G. Use information from the stem-and-leaf

Score

plot and the grading scale at the right to find the number of students who received each letter grade. Write the numbers on the grade record at the right.

@

Frank Schatfer Publications, lnc.

What single score was the most common in Ms. Woo's class?

30

Grade

90-1 00

A

8H9

B

70-79

c

6H9

D

1-59

F

Number of Students

FS-10219 Pre-Algebra


Name

Making a pictograph

Picture This Make a pictograph for the data shown in the table below. Write a title on the line above the graph and make a symbol key. List the sports along the left side of the graph and use symbols to indicate the number of people who participate in each. Mountain

Climbing 60 people

Walking Running Swimming Bicycling Aerobics

120 people 75 people 30 people 45 people 15 people

Use your pictograph to answer the questions.

A. Why did you choose your title? B. What does each symbol represent? Why did you choose that number value?

C. Write something you know from reading your picture graph.

I Pre-Algebra

@ffi Sffiler Publications,

lnc.

31

FS-10219 Pre-Algebra


Making a bar graph

Bars for Gars Make a double bar graph for the data shown at the right. List the autos along the left side ol the graph. For each car, show the number sold in March with one color and the number sold in April with another color. Write a title on the line above the graph and fill in the color key.

March 2,000 Compact 2-Door Sports 1,200 4-Door Sedan 1,100 Station Wagon 900 1,750 Van

March

April

2,300 1,800 950 850 2,300

April

o o (d

1,000

1,500

2,000

2,500

cars sold

Use the information given to answer the questions.

A. Which car sales did not increase between March and

B. Which car style had the largest increase in sales?

April?

D. Which two car styles had the same

c. How many more compact cars were

sales in April?

sold in April than in March?

E. Write something you know from reading the double bar graph.

@

Frank Schaffer Publications, lnc.

32

FS-10219 Pre-AIgebra


nr

graPh

Name

v

Video Rental Records

\-/

r-l n0 too

50l

Making a line graph

Day of Week

I

I

sol 1_]

Make a line graph for the data shown on the chart at the right. Write a title on the line above the graph. Put labels along the horizontal and vertical axes. Make a dot to show the number of videos rented each day. Connect the dots with lines.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Number of Videos 60 48 60 72 108 120 96

Use your line graph to answer the questions.

A. On which day were video rentals

B. On which two days were video rentals the same?

highest? Lowest?

ame

I Pre-Algebra

@

c. Did video rentals increase or decrease

D, What does the graph tell about the

between Tuesday and Wednesday?

trend of video rentals during the course of the week?

Frank Schaffer Publications, lnc.

33

FS-10219 Pre-Algebra


lnterpreting a hisiogram

Name

Heavyweight Histogram Study the histogram below. Then answer the questions'

Weights of Junior League Football Players 24 22 20 C)

516 f [14 rr

12 10 8

6

4 2

91-1 05

1

12't-135 06-1 20 Weight in Pounds

1

36-1 50

A. What does the width of each bar on the histogram represent?

B. What does the height of each bar on the histogram represent?

c. How many players weigh more than 135 pounds? D. What is the weight range with the greatest frequency? E. How many players weigh less than 106 pounds? F.

@

Write something you know from reading the histogram'

Frank Schalfer Publications, lnc.

34

FS-10219 Pre-Algebra


Name

Range, mean, median, and mode

Measures of Central Tendency Eleven students from each math class competed in a math competition. Their scores are shown below. range-the difference between the least and greatest numbers

Teacher

Scores

Ms. Rowe Mrs. Midqelv Mr. Maynard Mr. Arnaiz Ms. Silver Ms. Choi

79, 83, 96, 75, 100,80, 91,87,72,86,79 86, 89, 93, 86, 95, 82, 77, 86,95, 98, 86 68, 95, 72, 100,82, 85, 72,73, 68,72, 80 80, 75, 78, 80, 92, 66, 70,78,68, 90, 78 73, 68, 75,82,69, 85, 75,78,75,88,78 94, 90, 85,87,72,79,86, 95, 94, 98, 89

mean-the average median-the middle number in a set of data

mode-the number that occurs most frequently in a set of data

Find the range, the mean to the nearest tenth, the median, and the mode for each class. Write them on the chart below.

Teacher

Range

Mean

Median

Mode

Ms. Rowe Mrs. Midgely Mr. Maynard Mr. Arnaiz

Ms. Silver Ms. Choi Use your data to answer the questions.

A. Whose class had the highest mean?

B. Whose class had the smallest range?

c. Whose class had a five-point

D. Whose class had the lowest median?

difference between the median and the mode?

@

Frank Schaffer Publications, lnc.

35

FS-'|0219 Pre-Algebra


Box-and-whisker graphs

Name

Box-and-Wh isker

G

raphs

A box-and-whisker graph organizes data and helps you interpret it. Study the box-andwhisker graph shown below. The median is the middle number in the ordered data. The first quartile is the median of the lower half of the data. The third quartile is the median of the upper half of the data.

19 i

22

25

23

I

lower extreme

1st

28

ll quartile

29

36

38

40

42

46

50

62

I

I

{ upper extreme

3rd quaftile

median 37

2s

65

46

Answer the following questions about the box-and-whisker graph shown at the right.

A. What is the lower extreme? B. What is the first quartile? C. What is the median? D. What is the third quartile?

E. What is the upper extreme? Study the unfinished box-and-whisker graph below. Then answer the questions and record the information on the box-and-whisker graph.

3

10

13

F. What is the lower extreme?

H. What is the median?

17

26

21

29

31

32

36

39

G. What is the first quartile? l.

What is the third quaftile?

J. What is the upper extreme?

@

Frank Schatfer Publications, lnc.

36

FS-10219 Pre-Algebra


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