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Math Success Reproducible Worksheets

Reproducible Worksheets for:

Addition and Subtraction

These worksheets practice math concepts explained in Addition and Subtraction (ISBN 0-7660-1432–0),written by Lucille Caron and Philip M. St. Jacques.

Math Success reproducible worksheets are designed to help teachers, parents, and tutors use the books inthe Math Success series in the classroom and home. Teachers, librarians, tutors, and parents are grantedpermission and encouraged to make photocopies of these worksheets.

These worksheets are reproducible for educational use only and are not for resale.2006 © Enslow Publishers, Inc.

Visit www.enslow.com and search for the Math Success series and download worksheets for the followingtitles:

Addition and Subtraction Multiplication and Division 0-7660-1432-0 0-7660-1431–2

Fractions and Decimals Percents and Ratios 0–7660–1430–4 0–7660–1435–5

Geometry Pre–Algebra and Algebra 0–7660–1433–9 0–7660–1434–7

Titles in this series can be purchased directly from:Enslow Publishers, Inc.40 Industrial Road, Box 398Berkeley Heights, NJ 07922-0398Phone: 1-800-398-2504E-mail: [email protected] Page: http://www.enslow.com

Adding One-Digit Numbers

Adding One-Digit Numbers without Regrouping

a. 4 b. 7 c. 8 d. 3+ 0 + 2 + 1 + 2

e. 3 f. 4 g. 3 h. 5+ 3 + 1 + 4 + 3

i. 2 j. 6 k. 2 l. 6+ 2 + 0 + 5 + 3

Adding One-Digit Numbers with Regrouping

a. 4 b. 5 c. 7 d. 9+ 6 + 8 + 7 + 6

e. 6 f. 9 g. 9 h. 5+ 5 + 9 + 7 + 7

i. 4 j. 9 k. 6 l. 3+ 8 + 2 + 7 + 9

Name _____________________________________________ Date ___________________

2

© Enslow Publishers, Inc. Based on the book Addition and Subtraction by Lucille Caron and Philip M. St. Jacques,ISBN 0-7660-1432-0, pages 6-7.

Column Addition

Column Addition without Regrouping

Column Addition with Regrouping

Name _____________________________________________ Date ___________________

3

© Enslow Publishers, Inc. Based on the book Addition and Subtraction by Lucille Caron and Philip M. St. Jacques,ISBN 0-7660-1432-0, pages 8–9.

Example: Add 3 � 2 � 4 Step 1: Step 2:

a. 2 + 1 + 3 b. 2 + 2 + 4 c. 5 + 3 + 1

d. 4 + 1 + 3 e. 7 + 1 + 1 f. 5 + 1 + 3

Example: Add 7 � 8 � 9 Step 1:

a. 6 + 7 + 8 b. 4 + 9 + 7 c. 7 + 9 + 8

d. 5 + 7 + 8 e. 6 + 9 + 8 f. 9 + 8 + 9

3 5� 2 � 4

5 9

107 Step 2: 15

� 8 � 915 24

Adding Two-Digit Numbers

Adding Two-Digit Numbers without Regrouping

Adding Two-Digit Numbers with Regrouping

4

Name _____________________________________________ Date ___________________


Example: Add 62 � 14

a. 34 b 72 c. 83 d. 41 e. 25+ 25 + 16 + 14 + 17 + 23

f. 18 g. 33 h. 72 i. 65 j. 88+ 61 + 12 + 24 + 24 + 11


a. 67 b. 78 c. 86 d. 93 e. 56+ 39 + 43 + 57 + 27 + 96

f. 27 g. 47 h. 96 i. 57 j. 35+ 16 + 43 + 28 + 64 + 45

Step 1: 62 Step 2: 62� 14 � 14

6 76

ones tens

Step 1: 76 Step 2: 76� 48 � 48

4 124

ones tens1

Adding Three-Digit Numbers

Adding Three-Digit Numbers without Regrouping

Adding Three-Digit Numbers with Regrouping

Name _____________________________________________ Date ___________________

5



Step 1: 425 Step 2: 425 Step 3: 425� 273 � 273 � 273

8 98 698

Add the following numbers.

a. 324 b. 536 c. 665 d. 184+ 243 + 153 + 324 + 514

ones tens hundreds


Step 1: 647 Step 2: 647 Step 3: 647� 376 � 376 � 376

3 23 1,023

Add the following numbers.

a. 856 b. 943 c. 779 d. 468+ 385 + 277 + 456 + 675

1 1 1 1 1

Adding Greater Numbers

Adding Greater Numbers Using Place Value

Example: + 1,542 � 1 thousand 5 hundreds 4 tens 2 ones� 6,315 � 6 thousands 3 hundreds 1 ten 5 ones

7 thousands 8 hundreds 5 tens 7 ones � 7,857

a. 3,571 =+ 4,327 =

b. 1,282 =+ 6,516 =

Adding Greater Numbers Using Partial Sums

Add 53,176 + 39,845

ten thousands thousands hundreds tens ones50,000 3,000 100 70 630,000 9,000 800 40 5

6

Name _____________________________________________ Date ___________________


a. Add ones. 6+ 5

b. Add partial sum to sum 70of tens. 40

+

c. Add partial sum to sum of 100hundreds. 800

+

d. Add partial sum 3,000to sum of thousands. 9,000

+

e. Add partial sum to 50,000sum of ten thousands. 30,000

+

FINAL SUM �

Estimating Sums

Rounding

If the digit to the right of the underlined digit had been less than 5, the underlined digitwould remain the same and you would replace all digits to the right of the underlineddigit with zeros.

Round these numbers to the greatest place value.

a. 672 ______________ b. 149 ______________ c. 452 ______________

d. 924 ______________ e. 255 ______________ f. 616 ______________

Estimating Sums to the Greatest Place ValueExample: Find the estimated sum of 7,831 � 2,345.

Find the estimated sum.

Name _____________________________________________ Date ___________________

7


Step 1: Find the greatest place value of the number. the hundreds place

Underline the greatest place value. 489

Step 2: Find the digit to the right of the underlined digit. 8

Is this digit five or greater? yes

Since the digit is greater than five, add 1 to theunderlined digit.

4 + 1 = 5

Replace all the digits to the right of the underlineddigit with zeros.

500

Example: Round 489 to the greatest place value position.

7,831 rounds to 8,000� 2,345 rounds to � 2,000

1100,,000000

a. 267 _______� 513 � _______

b. 858 _______� 322 � _______

c. 8,621 _______� 5,217 � _______

Problem Solving

Missing Information

The following problem is missing some of the information you will need to solve it. Writethe missing fact on the line.

a. Glen needs a new tire for his bicycle. He has �12

� of the cost of the tire. How much more

money does he need?

b. Jack spent �13

� of his allowance on a baseball glove. How much money did he have left

from his allowance?

Extra information

Some problems give you too much information. Write the data you do not need on theline.

c. Sara jogs �34

� hour 5 days a week. On the other 2 days, she jogs 2 hours a day. How many

days a week does she jog?

d. Brittany paid $2.50 in tolls and $4 for 2 hours of parking. At this rate, how much would

she spend for 6 hours of parking?

8

Name _____________________________________________ Date ___________________


Adding Time Values

Units of Time

Adding Time Values without RegroupingExample:

a. 2 days 6 hours b. 3 years 7 months c. 4 hours 27 minutes+ 3 days 10 hours + 4 years 3 months + 5 hours 22 minutes

Adding Time Values with RegroupingExample: 7 hours 36 minutes

� 4 hours 48 minutes

Step 2: 84 minutes = 60 minutes � 24 minutes84 minutes = 1 hour � 24 minutes

a. 5 hours 55 minutes b. 4 hours 27 minutes c. 8 hours 43 minutes+ 8 hours 34 minutes + 2 hours 56 minutes + 6 hours 35 minutes

Name _____________________________________________ Date ___________________

9


1 minute = 60 seconds 1 year = 12 months1 hour = 60 minutes 1 year = 365 days1 day = 24 hours 1 decade = 10 years1 week = 7 days 1 century = 100 years1 year = 52 weeks

3 hours 22 minutes� 5 hours 12 minutes

8 hours 34 minutes

1

Step 1: 7 hours 36 minutes� 4 hours 48 minutes

84 minutes

Step 3: 7 hours 36 minutes� 4 hours 48 minutes12 hours 24 minutes

Adding Decimals

Adding Decimals with the Same Number of Decimal Places

Example: Add 3.9 � 1.7

a. 8.7 b. 7.0 c. 7.8 d. 4.9 e. 6.6 f. 5.4� 4.6 � 5.5 � 2.9 � 3.7 � 2.3 � 2.9

g. 72.5 h. 2.33 i. 6.82 j. 44.9 k. 15.28 l. 75.48� 61.6 � 5.15 � 1.95 � 23.6 � 52.93 � 72.59

Adding Decimals with Different Numbers of Decimal Places

Example: Add 4.6 � 2.59

a. 27.3 � 34.85 b. 40.62 � 3.9 c. 84.65 � 2.7 d. 9.5 � 8.62

10

Name _____________________________________________ Date ___________________


1 1

1 1

3.9 3.99 33.9� 1.7 � 1.77 � 11.7

.66 55.6

4.60 4.600 4.600 4.660 44.60� 2.59 � 2.59 � 2.599 � 2.559 � 22.59

99 .119 77.19

Adding Monetary Values

Example: Add 2 half-dollars, 3 quarters, 4 dimes, 1 nickel, and 3 pennies.half-dollars quarters dimes nickels pennies

$0.50 $0.25 $0.10 $0.05 $0.01�$0.50 $0.25 $0.10 $0.01

$1.00 �$0.25 $0.10 �$0.01$0.75 �$0.10 $0.03

$0.40

$1.00 half-dollars$0.75 quarters$0.40 dimes$0.05 nickel

� $0.03 pennies$2.23

a. Add 3 dollars, 2 quarters, 6 dimes, and 12 pennies.

b. Add 6 dollar bills, 3 quarters, 2 nickels, and 5 pennies.

Name _____________________________________________ Date ___________________

11


11

Adding Integers

Adding Like IntegersExample: To add two positive numbers, write them with or without the positive sign.

The sum of two or more positive integers is always positive.You can add two negative numbers.

The sum of two or more negative integers is always negative.

a. �4 � �2 � ______ b. �1 � �4 � �3 � ______

c. �6 � �1 � ______ d. �2 � �4 � �3 � ______

Adding Unlike IntegersExample: Add 2 � �5

Step 1: Subtract the two numbers. 5 � 2 � 3

Step 2: Compare the two numbers, 5 is greater than 2.ignoring the signs.

Step 3: Use the sign of the greater 2 � �5 � �3number. The sign of 5 is negative,so the answer is also negative.

a. �7 � 4 � _____ b. 9 � �4 � _____ c. �6 �7 � _____

d. �8 � 2 � _____ e. 3 � �8 � _____ f. 2 � �5 � _____

12

Name _____________________________________________ Date ___________________


0 1 2 3 4 5 6 7 8

0 1–1 2–2–3–4–5–6

2 � 5 � 7, or +7

�2 � �3 � �5

Adding Fractions

Adding Like Fractions

Example: Add �14

� � �34

� �1 �

43

� � �44

� �44

� � 1

a. �15

� + �35

� = b. �23

� + �13

� = c. �27

� + �47

� =

d. �12

� + �12

� = e. �58

� + �28

� = f. �16

� + �56

� =

Adding Unlike Fractions

Example: Add �12

� � �14

� �12

� � �14

�

�12

� is the same as �24

�. �24

� � �14

� � �2 �

41

� � �34

�

a. �14

� � �38

� � b. �13

� � �172� � c. �

12

� � �38

� �

d. �18

� � �34

� � e. �12

� � �130� � f. �

14

� � �152� �

Name _____________________________________________ Date ___________________

13

© Enslow Publishers, Inc. Based on the book Addition and Subtraction by Lucille Caron and Philip M. St. Jacques,ISBN 0-7660-1432-0, pages 30–31 .

�

�

Adding Mixed Numbers

Adding Mixed Numbers with Like Denominators

Example: Add 3 �49

� � 4 �19

�

Add fractions. Add whole numbers. So,

�49

� � �19

� � �4 �

91

� � �59

� 3 � 4 � 7 3 �49

� � 4 �19

� � 7 �59

�

a. 1 �13

� � 4 �13

� � b. 6 �49

� � 2 �49

� � c. 5 �15

� � 3 �25

� �

d. 7 �28

� � 6 �38

� � e. 8 �141� � 6 �

151� � f. 2 �

38

� � 7 �48

� �

Adding Mixed Numbers with Unlike Denominators

Example: Add 2 �34

� � 3 �56

�

Step 1: Find the least common multiple (LCM) of 4 and 6. The LCM is 12.Step 2: The LCM (12) becomes the least

common denominator (LCD).Write the fractions with the LCD.

Step 3: Add the whole numbers and fractions.

Step 4: Reduce the sum to lowest terms.

a. 4 �12

� b. 4 �34

� c. 7 �13

� d. 10 �23

�

+ 3 �35

� + 2 �15

� + 2 �58

� + 6 �45

�

e. 2 �56

� f. 8 �37

� g. 3 �49

� h. 7 �12

�

+ 3 �14

� + 9 �12

� + 4 �56

� + 2 �23

�

14

Name _____________________________________________ Date ___________________


�34

� � �33

�

�

33

� � �192� �

56

� � �56

�

�

22

� � �1102�

2 �192� � 3 �

11

02� � 5 �

11

92�

5 �11

92� � 6 �

172�

Addition and Subtraction

Subtraction can be used to check the answer to an addition problem.


Check each answer by subtraction.a. 925 b. 347 c. 759

� 62 � 125 � 218

d. 186 e. 486 f. 254� 75 � 275 � 98

Addition can be used to check the answer of a subtraction problem.

Example: Subtract 745 � 132

Check each answer by addition.a. 956 b. 598 c. 476

– 854 – 107 – 234

d. 497 e. 589 f. 678– 385 – 179 – 421

g. 366 h. 188 i. 629– 145 – 127 – 206

Name _____________________________________________ Date ___________________

15


Step 1: 426 Step 2: 461� 35 � 35

461 426

Step 1: 745 Step 2: 613� 132 � 132

613 745

Subtracting One-Digit Numbers

a. 2 b. 4 c. 6 d. 3– 0 – 1 – 2 – 2

e. 7 f. 5 g. 9 h. 4– 5 – 3 – 8 – 4

i. 7 j. 9 k. 7 l. 5– 2 – 6 – 4 – 4

m. 8 n. 9 o. 3 p. 6– 6 – 4 – 2 – 4

q. 7 r. 8 s. 9 t. 9– 3 – 5 – 2 – 6

u. 9 v. 8 w. 6 x. 5– 3 – 7 – 3 – 2

16

Name _____________________________________________ Date ___________________


Subtracting Two-Digit Numbers

Subtracting Two-Digit Numbers without Regrouping

a. 57 b. 79 c. 66 d. 97– 24 – 48 – 45 – 26

e. 25 f. 85 g. 26 h. 93– 12 – 42 – 12 – 73

i. 17 j. 41 k. 39 l. 87– 10 – 11 – 26 – 26

Subtracting Two-Digit Numbers with Regrouping

a. 75 b. 51 c. 43 d. 64– 48 – 34 – 17 – 39

e. 82 f. 95 g. 46 h. 32– 26 – 57 – 28 – 27

i. 55 j. 22 k. 73 l. 91– 16 – 18 – 48 – 66

Name _____________________________________________ Date ___________________

17


Subtracting Three-Digit Numbers

Subtracting Three-Digit Numbers without Regrouping

a. 366 b. 493 c. 946 d. 587� 145 � 281 � 823 � 324

e. 621 f. 725 g. 882 h. 396� 210 � 613 � 701 � 125

Subtracting Three-Digit Numbers with Regrouping

Example: 590� 247

343

a. 946 b. 424 c. 513 d. 765� 858 � 236 � 137 � 387

e. 738 f. 600 g. 372 h. 810� 259 � 283 � 179 � 432

i. 925 j. 401 k. 536 l. 637� 476 � 173 � 249 � 458

m. 750 n. 802 o. 955 p. 400� 485 � 169 � 678 � 293

18

Name _____________________________________________ Date ___________________


8 10

Subtracting Greater Numbers

Subtracting Greater Numbers without Regrouping

Example: 23,486� 10,252

13,234

a. 23,716 b. 82,358 c. 58,937 d. 64,895� 12,502 � 41,326 � 14,712 � 14,253

Subtracting Greater Numbers with Regrouping

Example: 78,950�� 14,895

64,055

a. 28,600 b. 63,450 c. 85,722 d. 26,901� 13,374 � 22,183 � 31,453 � 15,645

e. 37,425 f. 47,660 g. 59,212 h. 67,473� 16,178 � 24,372 � 40,176 � 51,285

i. 72,100 j. 61,012 k. 70,950 l. 20,000� 18,044 � 25,243 � 64,895 � 10,258

m. 88,123 n. 92,427 o. 55,246 p. 49,910� 16,076 � 27,139 � 31,348 � 19,627

Name _____________________________________________ Date ___________________

19


8 14 10

Estimating Differences

Rounding to the Greatest Place ValueExample: 259 rounds to 300 6,210 rounds to 6,000

249 rounds to 200 6,750 rounds to 7,000

a. The Perez family drove 513 miles on the first day of their vacation. The next day theydrove 281 miles. Estimate the number of miles more they drove the first day.

b. On Friday, 3,012 cars passed through the bay tunnel. On Saturday, 1,968 cars passedthrough the tunnel. About how many more cars passed through the tunnel on Friday?

c. Erik ran 2,775 meters on Monday and 3,810 meters on Tuesday. About how many moremeters did he run on Tuesday?

Rounding to the Nearest TensExample: 378 rounds to 380

a. A farmer planted 258 tomato plants and 132 pepper plants. About how many moretomato plants did he plant?

b. Fred’s Fast Food served 631 hamburgers and 287 hot dogs today. Approximately howmany more hamburgers were served?

c. The school library has 912 fiction books and 478 nonfiction books About how manymore fiction books does it have?

20

Name _____________________________________________ Date ___________________


Subtracting Time Values

Twelve-Hour Time and Twenty-Four Hour TimeExample: Write the time using hours and minutes.

9:30 A.M. 4:20 P.M.12-hour time: 9 hours 30 minutes 4 hours 20 minutes24-hour time:: 0930 1620

Write time in both 12-hour and 24-hour time.a. 4:15 A.M. b. 6:30 P.M.

c. 2:05 A.M. d. 7:25 P.M.

Subtracting Time Values without Regrouping

a. 3 hours 45 minutes b. 12 hours 46 minutes c. 16 hours 32 minutes� 2 hours 25 minutes � 8 hours 19 minutes � 5 hours 20 minutes

Subtracting Time Values with Regrouping

a. 4 hours 30 minutes b. 7 hours 19 minutes c. 9 hours 15 minutes� 2 hours 45 minutes � 3 hours 24 minutes � 7 hours 40 minutes

d. Solve: A science film runs 3 hours 10 minutes. An editor shortens it by 1 hour 15 minutes.How long is the finished film?

Name _____________________________________________ Date ___________________

21


Example: 4 hours 40 minutes� 2 hours 10 minutes

2 hours 30 minutes

Example: 6 hours 10 minutes� 2 hours 20 minutes

3 hours 50 minutes

5 60 � 10 � 70

Subtracting Decimals

Subtracting Decimals without RegroupingExample: 5.6 � 1.2 5.6

� 1.24.4

a. 4.8 b. 6.7 c. 8.5 d. 2.1 e. 5.6� 2.3 � 5.2 � 4.1 � 1.1 � 3.2

f. 7.6 g 3.9 h. 9.2 i. 6.6 j. 8.5� 3.4 � 1.7 � 7.1 � 4.3 � 2.4

Subtracting Decimals with RegroupingExample: 6.30 � 2.75 6.30

� 2.753.55

a. 29.15 b. 5.22 c. 17.02 d. 4.20� 10.76 � 4.63 � 4.84 �1.56

e. 26.00 f. 7.54 g. 51.70 h. 60.13� 17.39 � 3.99 � 12.75 � 58.74

Solve the following problems.

i. Jessica wants to make a coat that requires 4.2 yards of fabric. She has 1.25 yards. Howmuch more fabric does she need?

j. Max and Susan each worked a number problem. Max completed the puzzle in 50.25seconds and Susan in 50.19 seconds. How much longer did it take Max?

22

Name _____________________________________________ Date ___________________


5 12 10

Subtracting Monetary Values

Monetary values are subtracted like other decimals. Be sure to line up the decimal points.

Example: $44.90 � $20.32

a. $80.40 b. $51.25 c. $92.61 d. $67.91– 22.72 – 16.48 – 38.39 – 44.67

e. $71.00 f. $26.22 g. $48.22 h. $48.10– 28.10 – 17.39 – 18.98 – 29.86


i. Maria paid $16.58 for a birthday gift for her friend. Patrick paid $22.42 for the gift hebought. How much more did Patrick pay?

j. The sixth graders had a bake sale to raise money for their field trip. They needed to raise$84.50. After the bake sale, they needed $7.78 more. How much did they earn at thebake sale?

k. John bought an airline ticket for $92.50. Anna’s ticket was $75.45. How much moredid John pay for his ticket?

l. Alexa bought CDs for $35.99. She paid with a $50 bill. How much change did she get?

Name _____________________________________________ Date ___________________

23


8 10$44.90

� 20.32$24.58

Subtracting Integers

Subtracting Like IntegersExample: Subtract 4 � 7 4 � �7 = �3

a. 6 � 3 � b. 3 � 6 � c. 10 � 11 �

d. 15 � 10 � e. 5 � 10 � f. 8 � 12 �

Subtracting Unlike IntegersExamples: �4 � 9 � �4 � �9 � �13 3 � �5 � 3 � 5 � 8

a. �4 – 3 � b. 8 – �4 � c. �7 – �2 �

d. 5 – �6 � e. �3 – 8 � f. �9 – �9 �

g. �8 – �2 � h. 7 – �5 � i. �25 – �50 �

Solve the following problem.

A scuba diver is 6 meters below sea level. She dives 3 meters deeper. Use an integer todescribe where the diver is then.

24

Name _____________________________________________ Date ___________________


subtract 7

add 4

Subtracting Fractions

Subtracting Like Fractions

Example: �78

� � �18

� � �7 �

81

� � �68

� � �34

�

a. �190� � �

130� � b. �

45

� � �25

� � c. �171� � �

141� �

d. �56

� � �26

� � e. �111

2� � �

152� � f. �

78

� � �58

� �

Subtracting Unlike Fractions

Example: �56

� � �14

� � �11

02� � �

132� � �

101�

23

� � �172�

a. �34

� � �18

� � b. �23

� � �17

� � c. �12

� � �13

� �

d. �29

� � �16

� � e. �16

� � �17

� � f. �23

� � �14

� �

g. �170� � �

35

� � h. �78

� � �12

� � i. �56

� � �23

� �

j. �56

� � �34

� = k. �45

� � �23

� = l. �38

� � �16

� =


a. Jake used �35

� gallon of white paint and �14

� gallon of brown paint. How much more white

paint did he use?

b. Mom used �34

� yard of ribbon to decorate Jessica’s dress and �13

� yard of lace to decorate

Emily’s dress. How many more yards of ribbon did she use?

Name _____________________________________________ Date ___________________

25


Subtracting Mixed Numbers

Subtracting Mixed Numbers with Unlike Denominators

Example: 8 �49

� � 7 �13

� 8 �49

�

� 7 �39

�

1 �19

�

a. 8 �12

� � 4 �18

� b. 9 �152� � 3 �

16

� c. 5 �23

� � 1 �16

� d. 5 �12

� � 3 �13

�

e. 2 �35

� � 1 �13

� f. 8 �13

� � 3 �27

� g. 9 �13

� � 7 �18

� h. 7 �14

� � 5 �112�

Subtracting Mixed Numbers with Regrouping

Example: 6 �13

� � �23

� 5 �43

� � �23

� � 5 �23

�

a. 7 �14

� � 5 �34

� b. 6 �27

� � �57

� c. 8 �18

� � 4 �38

� d. 5 �19

� � 2 �49

�

e. 7 �35

� � 2 �45

� f. 9 �13

� � 3 �23

� g. 4 �16

� � 2 �56

� h. 15 �130� � 7 �

170�

26

Name _____________________________________________ Date ___________________


Addition and Subtraction Answers

Adding One-Digit Numbers, page 2without regrouping: a. 4; b. 9; c. 9; d. 5; e. 6; f. 5; g. 7; h. 8; i. 4; j. 6; k. 7; l. 9with regrouping: a. 10; b. 13; c. 14; d. 15; e. 11; f. 18; g. 16; h. 12; i. 12; j. 11; k. 13; l. 12

Column Addition, page 3 without regrouping: a. 6; b. 8; c. 9; d. 8; e. 9; f. 9with regrouping: a. 21; b. 20; c. 24; d. 20; e. 23; f. 26

Adding Two-Digit Numbers, page 4without regrouping: a. 59; b. 88; c. 97; d. 58; e. 48; f. 79; g. 45; h. 96; i. 89; j. 99with regrouping: a. 106; b. 121; c. 143; d. 120; e. 152; f. 43; g. 90; h. 124; i. 121; j. 80

Adding Three-Digit Numbers, page 5without regrouping: a. 567; b. 689; c. 989; d. 698with regrouping: a. 1,241; b. 1,220; c. 1,235; d. 1,143

Adding Greater Numbers, page 6using place value: a. 3 thousands, 5 hundreds, 7 tens, 1 one � 4 thousands, 3hundreds, 2 tens, 7 ones � 7,898 b. 1 thousand, 2 hundreds, 8 tens, 2 ones � 6thousands, 5 hundreds, 1 ten, 6 ones � 7,798 using partial sums: a. 11; b. 121; c. 1,021; d. 13,021; e. 93,021

Estimating Sums, page 7rounding: a. 700; b. 100; c. 500; d. 900; e. 300; f. 600estimating sums: a. 300 � 500 � 800; b. 900 � 300 � 1,200; c. 9,000 � 5,000 � 14,000

Problem Solving, page 8a. cost of tire; b. amount of allowance; c. hours jogged; d. cost of tolls

Adding Time Values, page 9without regrouping: a. 5 days, 16 hours; b. 7 years, 10 months; c. 9 hours, 49 minuteswith regrouping: a. 14 hours, 29 minutes; b. 7 hours, 23 minutes; c. 15 hours,18 minutes

Adding Decimals, page 10same number of places: a. 13.3; b. 12.5; c. 10.7; d. 8.6; e. 8.9; f. 8.3; g. 134.1; h. 7.48; i. 8.77; j. 68.5; k. 68.21; l. 148.07different numbers of places: a. 62.15; b. 44.52; c. 87.35; d. 18.12

Adding Monetary Values, page 11a. $4.22; b. $6.90

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Adding Integers, page 12like integers: a. ��6; b. ��8; c. ��7; d. ��9unlike integers: a. ��3; b. 5; c. 1; d. ��6; e. ��5; f. ��3

Adding Fractions, page 13

like fractions: a. ��45

��; b. 1; c. ��67

��; d. 1; e. ��78

��; f. 1

unlike fractions: a. ��58

��; b. ��111

2��; c. ��

78

��; d. ��78

��; e. ��45

��; f. ��23

��

Adding Mixed Numbers, page 14

like denominators: a. 5 �23

�; b. 8 �89

�; c. 8 �35

�; d. 13 �58

�; e. 14 �191�; f. 9 �

78

�

unlike denominators: a. 8 �110�; b. 6 �

12

90�; c. 9 �

2234�; d. 17 �

175�; e. 6 �

112�; f. 17 �

114

3�;

g. 8 �158�; h. 10 �

16

�

Addition and Subtraction, page 15checking answers by subtraction: a. 987; b. 472; c. 977; d. 261; e. 761; f. 352checking answers by addition: a. 102; b. 491; c. 242; d. 112; e. 410; f. 257; g. 221; h. 61; i. 423

Subtracting One-Digit Numbers, page 16a. 2; b. 3; c. 4; d. 1; e. 2; f. 2; g. 1; h. 0; i. 5; j. 3; k. 3; l. 1; m. 2; n. 5; o. 1; p. 2; q. 4; r. 3; s. 7; t. 3; u. 6; v. 1; w. 3; x. 3

Subtracting Two-Digit Numbers, page 17without regrouping: a. 33; b. 31; c. 21; d. 71; e. 13; f. 43; g. 14; h. 20; i. 7; j. 30; k. 13; l. 61with regrouping: a. 27; b. 17; c. 26; d. 25; e. 56; f. 38; g. 18; h. 5; i. 39; j. 4; k. 25; l. 25

Subtracting Three-Digit Numbers, page 18without regrouping: a. 221; b. 212; c. 123; d. 263; e. 411; f. 112; g. 181; h. 271with regrouping: a. 88; b. 188; c. 376; d. 378; e. 479; f. 317; g. 193; h. 378; i. 449; j. 228; k. 287; l. 179; m. 265; n. 633; o. 277; p. 107

Subtracting Greater Numbers, page 19without regrouping: a. 11,214; b. 41,032; c. 44,225; d. 50,642with regrouping: a. 15,226; b. 41,267; c. 54,269; d. 11,256; e. 21,247; f. 23,288; g. 19,036;h. 16,188; i. 54,056; j. 35,769; k. 6,055; l. 9,742; m. 72,047; n. 65,288; o. 23,898; p. 30,283

Estimating Differences, page 20rounding to the greatest place value: a. 200 miles; b. 1,000 cars; c. 1,000 metersrounding to the nearest tens: a. 130; b. 340; c. 430

28

Subtracting Time Values, page 21writing time: a. 4 hours 15 minutes, 0415; b. 6 hours 30 minutes, 1830; c. 2 hours 5minutes, 0205; d. 7 hours 25 minutes, 1925without regrouping: a. 1 hour 20 minutes; b. 4 hours 27 minutes; c. 11 hours 12 minuteswith regrouping: a. 1 hour 45 minutes; b. 3 hours 55 minutes; c. 1 hour 35 minutes;d. 1 hour 55 minutes

Subtracting Decimals, page 22without regrouping: a. 2.5; b. 1.5; c. 4.4; d. 1.0; e. 2.4; f. 4.2; g. 2.2; h. 2.1; i. 2.3; j. 6.1with regrouping: a. 18.39; b. 0.59; c. 12.18; d. 2.64; e. 8.61; f. 3.55; g. 38.95; h. 1.39; i. 2.95 yards; j. 0.06 seconds

Subtracting Monetary Values, page 23a. $57.68; b. $34.77; c. $54.22; d. $23.24; e. $42.90; f. $8.83; g. $29.24; h. $18.24; i. $5.84; j. $76.72; k. $17.05; l. $14.01

Subtracting Integers, page 24like integers: a. 3; b. ��3; c. ��1; d. 5; e. ��5; f. ��4unlike integers: a. ��7; b. 12; c. ��5; d. 11; e. ��11; f. 0; g. ��6; h. 12; i. 25word problem: ��9 or 9 meters below sea level

Subtracting Fractions, page 25

like fractions: a. ��35

��; b. ��25

��; c. ��131��; d. ��

12

��; e. ��12

��; f. ��14

��

unlike fractions: a. ��58

��; b. ��2111��; c. ��

16

��; d. ��118��; e. ��

412��; f. ��

152��; g. ��

110��; h. ��

38

��; i. ��16

��; j. ��112��;

k. ��125��; l. ��

254��

word problems: a. �270� gallon; b. ��

152�� yard

Subtracting Mixed Numbers, page 26

unlike denominators: a. 4 �38

�; b. 6 �14

�; c. 4 �12

�; d. 2 �16

�; e. 1 �145�; f. 5 �

211�; g. 2 �

254�; h. 2 �

16

�

with regrouping: a. 1 �12

�; b. 5 �47

�; c. 3 �34

�; d. 2 �23

�; e. 4 �45

�; f. 5 �23

�; g. 1 �13

�; h. 7 �35

�

29

addition and subtraction - enslow publishing · addition and subtraction these worksheets practice...

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