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1.8 Addition and Subtraction of Whole Numbers: Exercise Supplement

Module by: Denny Burzynski, Wade Ellis. E-mail the authors

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Exercise Supplement

For problems 1-35, find the sums and differences.

Exercise 1

908 + 29 ¯ 908 + 29 ¯

Solution

937

Exercise 2

529 + 16 ¯ 529 + 16 ¯

Exercise 3

549 + 16 ¯ 549 + 16 ¯

Solution

565

Exercise 4

726 + 892 ¯ 726 + 892 ¯

Exercise 5

390 + 169 ¯ 390 + 169 ¯

Solution

559

Exercise 6

166 + 660 ¯ 166 + 660 ¯

Exercise 7

391 + 951 ¯ 391 + 951 ¯

Solution

1,342

Exercise 8

48 + 36 ¯ 48 + 36 ¯

Exercise 9

1,103 + 898 ¯ 1,103 + 898 ¯

Solution

2,001

Exercise 10

1,642 + 899 ¯ 1,642 + 899 ¯

Exercise 11

807 + 1,156 ¯ 807 + 1,156 ¯

Solution

1,963

Exercise 12

80,349 + 2,679 ¯ 80,349 + 2,679 ¯

Exercise 13

70,070 + 9,386 ¯ 70,070 + 9,386 ¯

Solution

79,456

Exercise 14

90,874 + 2,945 ¯ 90,874 + 2,945 ¯

Exercise 15

45,292 + 51,661 ¯ 45,292 + 51,661 ¯

Solution

96,953

Exercise 16

1,617 + 54,923 ¯ 1,617 + 54,923 ¯

Exercise 17

702,607 + 89,217 ¯ 702,607 + 89,217 ¯

Solution

791,824

Exercise 18

6,670,006 + 2,495 ¯ 6,670,006 + 2,495 ¯

Exercise 19

267 + 8,034 ¯ 267 + 8,034 ¯

Solution

8,301

Exercise 20

7,007 + 11,938 ¯ 7,007 + 11,938 ¯

Exercise 21

131,294 + 9,087 ¯ 131,294 + 9,087 ¯

Solution

140,381

Exercise 22

5,292 + 161 ¯ 5,292 + 161 ¯

Exercise 23

17,260 + 58,964 ¯ 17,260 + 58,964 ¯

Solution

76,224

Exercise 24

7,006 - 5,382 ¯ 7,006 - 5,382 ¯

Exercise 25

7,973 - 3,018 ¯ 7,973 - 3,018 ¯

Solution

4,955

Exercise 26

16,608 - 1,660 ¯ 16,608 - 1,660 ¯

Exercise 27

209,527 - 23,916 ¯ 209,527 - 23,916 ¯

Solution

185,611

Exercise 28

584 - 226 ¯ 584 - 226 ¯

Exercise 29

3,313 - 1,075 ¯ 3,313 - 1,075 ¯

Solution

2,238

Exercise 30

458 - 122 ¯ 458 - 122 ¯

Exercise 31

1,007 + 331 ¯ 1,007 + 331 ¯

Solution

1,338

Exercise 32

16,082 + 2,013 ¯ 16,082 + 2,013 ¯

Exercise 33

926 - 48 ¯ 926 - 48 ¯

Solution

878

Exercise 34

736 + 5,869 ¯ 736 + 5,869 ¯

Exercise 35

676,504 - 58,277 ¯ 676,504 - 58,277 ¯

Solution

618,227

For problems 36-39, add the numbers.

Exercise 36

769 795 298 746 ¯ 769 795 298 746 ¯

Exercise 37

554 184 883 ¯ 554 184 883 ¯

Solution

1,621

Exercise 38

30,188 79,731 16,600 66,085 39,169 95,170 ¯ 30,188 79,731 16,600 66,085 39,169 95,170 ¯

Exercise 39

2,129 6,190 17,044 30,447 292 41 428,458 ¯ 2,129 6,190 17,044 30,447 292 41 428,458 ¯

Solution

484,601

For problems 40-50, combine the numbers as indicated.

Exercise 40

2, 957 + 9, 006 2, 957 + 9, 006 size 12{2,"957"+9,"006"} {}

Exercise 41

19,040+81319,040+813 size 12{"19","040"+"813"} {}

Solution

19,853

Exercise 42

350 , 212 + 14 , 533 350 , 212 + 14 , 533 size 12{"350","212"+"14","533"} {}

Exercise 43

970+702+22+8970+702+22+8 size 12{"970"+"702"+"22"+8} {}

Solution

1,702

Exercise 44

3, 704 + 2, 344 + 429 + 10 , 374 + 74 3, 704 + 2, 344 + 429 + 10 , 374 + 74 size 12{3,"704"+2,"344"+"429"+"10","374"+"74"} {}

Exercise 45

874+845+295900874+845+295900 size 12{"874"+"845"+"295"-"900"} {}

Solution

1,114

Exercise 46

904 + 910 881 904 + 910 881 size 12{"904"+"910"-"881"} {}

Exercise 47

521+453334+600521+453334+600 size 12{"521"+"453"-"334"+"600"} {}

Solution

1,300

Exercise 48

892 820 9 892 820 9 size 12{"892"-"820"-9} {}

Exercise 49

159+4,085918608159+4,085918608 size 12{"159"+4,"085"-"918"-"608"} {}

Solution

2,718

Exercise 50

2, 562 + 8, 754 393 385 910 2, 562 + 8, 754 393 385 910 size 12{2,"562"+8,"754"-"393"-"385"-"910"} {}

For problems 51-63, add and subtract as indicated.

Exercise 51

Subtract 671 from 8,027.

Solution

7,356

Exercise 52

Subtract 387 from 6,342.

Exercise 53

Subtract 2,926 from 6,341.

Solution

3,415

Exercise 54

Subtract 4,355 from the sum of 74 and 7,319.

Exercise 55

Subtract 325 from the sum of 7,188 and 4,964.

Solution

11,827

Exercise 56

Subtract 496 from the difference of 60,321 and 99.

Exercise 57

Subtract 20,663 from the difference of 523,150 and 95,225.

Solution

407,262

Exercise 58

Add the difference of 843 and 139 to the differ­ence of 4,450 and 839.

Exercise 59

Add the difference of 997,468 and 292,513 to the difference of 22,140 and 8,617.

Solution

718,478

Exercise 60

Subtract the difference of 8,412 and 576 from the sum of 22,140 and 8,617.

Exercise 61

Add the sum of 2,273, 3,304, 847, and 16 to the difference of 4,365 and 864.

Solution

9,941

Exercise 62

Add the sum of 19,161, 201, 166,127, and 44 to the difference of the sums of 161, 2,455, and 85, and 21, 26, 48, and 187.

Exercise 63

Is the sum of 626 and 1,242 the same as the sum of 1,242 and 626? Justify your claim.

Solution

626 + 1,242 = 1,242 + 626 = 1,868 626+1,242=1,242+626=1,868

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