20問 足し算 小数足し算 数学・算数の教材公開ページ

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(1)

(1) 42

.32 + 12.42 = (2) 5.007 + 4.137 = (3) 9.405 + 1.565 =

(4) 2.6 + 47.04 = (5) 9.779 + 4.197 = (6) 8.627 + 7.972 =

(7) 59.64 + 84.87 = (8) 98.44 + 12.46 = (9) 392.2 + 606.9 =

(10) 268.2 + 363.7 = (11) 2.064 + 4.246 = (12) 4.988 + 7.356 =

(13) 378

.8 + 705.7 = (14) 829.5 + 345.3 = (15) 410.1 + 517.7 =

(16) 8.713 + 0.791 = (17) 95.45 + 91.96 = (18) 990.5 + 638.8 =

(2)

(1) 42.32 + 12.42 =

54

.

74

(2) 5.007 + 4.137 =

9

.

144

(3) 9.405 + 1.565 =

10

.

97

(4) 2.6 + 47.04 =

49

.

64

(5) 9.779 + 4.197 =

13

.

976

(6) 8.627 + 7.972 =

16

.

599

(7) 59.64 + 84.87 =

144

.

51

(8) 98.44 + 12.46 =

110

.

9

(9) 392.2 + 606.9 =

999

.

1

(10) 268

.2 + 363.7 =

631

.

9

(11) 2.064 + 4.246 =

6

.

31

(12) 4.988 + 7.356 =

12

.

344

(13) 378.8 + 705.7 =

1084

.

5

(14) 829.5 + 345.3 =

1174

.

8

(15) 410.1 + 517.7 =

927

.

8

(16) 8.713 + 0.791 =

9

.

504

(17) 95.45 + 91.96 =

187

.

41

(18) 990.5 + 638.8 =

1629

.

3

(3)

(1) 738

.3 + 54.7 = (2) 77.31 + 11.68 = (3) 1.676 + 4.301 =

(4) 90.47 + 30.73 = (5) 452.3 + 443.2 = (6) 29.78 + 21.57 =

(7) 59.51 + 5.08 = (8) 17.84 + 79.17 = (9) 20.3 + 65.21 =

(10) 4.279 + 9.717 = (11) 127.2 + 420.2 = (12) 4.372 + 5.629 =

(13) 29

.4 + 84.37 = (14) 5 + 28.45 = (15) 154.6 + 733.4 =

(16) 368.7 + 638.1 = (17) 4.861 + 1.813 = (18) 3.334 + 8.539 =

(4)

(1) 738.3 + 54.7 =

793

(2) 77.31 + 11.68 =

88

.

99

(3) 1.676 + 4.301 =

5

.

977

(4) 90.47 + 30.73 =

121

.

2

(5) 452.3 + 443.2 =

895

.

5

(6) 29.78 + 21.57 =

51

.

35

(7) 59.51 + 5.08 =

64

.

59

(8) 17.84 + 79.17 =

97

.

01

(9) 20.3 + 65.21 =

85

.

51

(10) 4

.279 + 9.717 =

13

.

996

(11) 127.2 + 420.2 =

547

.

4

(12) 4.372 + 5.629 =

10

.

001

(13) 29.4 + 84.37 =

113

.

77

(14) 5 + 28.45 =

33

.

45

(15) 154.6 + 733.4 =

888

(16) 368.7 + 638.1 =

1006

.

8

(17) 4.861 + 1.813 =

6

.

674

(18) 3.334 + 8.539 =

11

.

873

(5)

(1) 62

.56 + 70.19 = (2) 435.3 + 405.4 = (3) 88.19 + 29.71 =

(4) 22.46 + 14.43 = (5) 92.92 + 53.6 = (6) 629.2 + 670.6 =

(7) 940.4 + 988.8 = (8) 19.9 + 91.83 = (9) 4.501 + 9.395 =

(10) 4.319 + 2.054 = (11) 250.6 + 226 = (12) 89.19 + 78.41 =

(13) 1

.25 + 50.49 = (14) 13.42 + 31.75 = (15) 5.788 + 6.983 =

(16) 3.125 + 3.619 = (17) 95.06 + 48.29 = (18) 819.8 + 643.8 =

(6)

(1) 62.56 + 70.19 =

132

.

75

(2) 435.3 + 405.4 =

840

.

7

(3) 88.19 + 29.71 =

117

.

9

(4) 22.46 + 14.43 =

36

.

89

(5) 92.92 + 53.6 =

146

.

52

(6) 629.2 + 670.6 =

1299

.

8

(7) 940.4 + 988.8 =

1929

.

2

(8) 19.9 + 91.83 =

111

.

73

(9) 4.501 + 9.395 =

13

.

896

(10) 4

.319 + 2.054 =

6

.

373

(11) 250.6 + 226 =

476

.

6

(12) 89.19 + 78.41 =

167

.

6

(13) 1.25 + 50.49 =

51

.

74

(14) 13.42 + 31.75 =

45

.

17

(15) 5.788 + 6.983 =

12

.

771

(16) 3.125 + 3.619 =

6

.

744

(17) 95.06 + 48.29 =

143

.

35

(18) 819.8 + 643.8 =

1463

.

6

(7)

(1) 6

.666 + 7.984 = (2) 84.38 + 27.58 = (3) 26.9 + 945.6 =

(4) 8.92 + 7.724 = (5) 38.8 + 464.2 = (6) 1.836 + 5.424 =

(7) 47.22 + 10.36 = (8) 53.7 + 86.54 = (9) 565.7 + 668.2 =

(10) 515.1 + 535.3 = (11) 1.242 + 1.884 = (12) 3.468 + 2.019 =

(13) 288

.8 + 26.4 = (14) 999.5 + 351.5 = (15) 8.998 + 2.741 =

(16) 633.3 + 885.2 = (17) 0.968 + 9.738 = (18) 78.47 + 0.4 =

(8)

(1) 6.666 + 7.984 =

14

.

65

(2) 84.38 + 27.58 =

111

.

96

(3) 26.9 + 945.6 =

972

.

5

(4) 8.92 + 7.724 =

16

.

644

(5) 38.8 + 464.2 =

503

(6) 1.836 + 5.424 =

7

.

26

(7) 47.22 + 10.36 =

57

.

58

(8) 53.7 + 86.54 =

140

.

24

(9) 565.7 + 668.2 =

1233

.

9

(10) 515

.1 + 535.3 =

1050

.

4

(11) 1.242 + 1.884 =

3

.

126

(12) 3.468 + 2.019 =

5

.

487

(13) 288.8 + 26.4 =

315

.

2

(14) 999.5 + 351.5 =

1351

(15) 8.998 + 2.741 =

11

.

739

(16) 633.3 + 885.2 =

1518

.

5

(17) 0.968 + 9.738 =

10

.

706

(18) 78.47 + 0.4 =

78

.

87

(9)

(1) 386

.5 + 448.2 = (2) 8.387 + 7.932 = (3) 619.3 + 937.7 =

(4) 8.084 + 0.089 = (5) 108.6 + 365.9 = (6) 2.632 + 1.841 =

(7) 42.18 + 17.55 = (8) 212.2 + 578.9 = (9) 161.1 + 674 =

(10) 63.66 + 84.62 = (11) 94.73 + 77.81 = (12) 9.005 + 2.644 =

(13) 60

.11 + 12.98 = (14) 163.5 + 488.8 = (15) 57.37 + 73.49 =

(16) 833.1 + 731.3 = (17) 20.23 + 85.62 = (18) 32.04 + 67.66 =

(10)

(1) 386.5 + 448.2 =

834

.

7

(2) 8.387 + 7.932 =

16

.

319

(3) 619.3 + 937.7 =

1557

(4) 8.084 + 0.089 =

8

.

173

(5) 108.6 + 365.9 =

474

.

5

(6) 2.632 + 1.841 =

4

.

473

(7) 42.18 + 17.55 =

59

.

73

(8) 212.2 + 578.9 =

791

.

1

(9) 161.1 + 674 =

835

.

1

(10) 63

.66 + 84.62 =

148

.

28

(11) 94.73 + 77.81 =

172

.

54

(12) 9.005 + 2.644 =

11

.

649

(13) 60.11 + 12.98 =

73

.

09

(14) 163.5 + 488.8 =

652

.

3

(15) 57.37 + 73.49 =

130

.

86

(16) 833.1 + 731.3 =

1564

.

4

(17) 20.23 + 85.62 =

105

.

85

(18) 32.04 + 67.66 =

99

.

7

(11)

(1) 94

.95 + 39.86 = (2) 98.47 + 45.1 = (3) 6.087 + 5.665 =

(4) 987.6 + 597.9 = (5) 409.4 + 74.7 = (6) 95.31 + 56.76 =

(7) 1.145 + 2.354 = (8) 130.4 + 974.5 = (9) 20.14 + 40.97 =

(10) 73.75 + 17.94 = (11) 419.1 + 579.8 = (12) 140.2 + 154.8 =

(13) 99

.51 + 7.78 = (14) 27.38 + 44.83 = (15) 76.27 + 43.83 =

(16) 321.5 + 723.3 = (17) 94.96 + 53.65 = (18) 16.1 + 608.6 =

(12)

(1) 94.95 + 39.86 =

134

.

81

(2) 98.47 + 45.1 =

143

.

57

(3) 6.087 + 5.665 =

11

.

752

(4) 987.6 + 597.9 =

1585

.

5

(5) 409.4 + 74.7 =

484

.

1

(6) 95.31 + 56.76 =

152

.

07

(7) 1.145 + 2.354 =

3

.

499

(8) 130.4 + 974.5 =

1104

.

9

(9) 20.14 + 40.97 =

61

.

11

(10) 73

.75 + 17.94 =

91

.

69

(11) 419.1 + 579.8 =

998

.

9

(12) 140.2 + 154.8 =

295

(13) 99.51 + 7.78 =

107

.

29

(14) 27.38 + 44.83 =

72

.

21

(15) 76.27 + 43.83 =

120

.

1

(16) 321.5 + 723.3 =

1044

.

8

(17) 94.96 + 53.65 =

148

.

61

(18) 16.1 + 608.6 =

624

.

7

(13)

(1) 93

.39 + 88.72 = (2) 341.2 + 936.7 = (3) 86.59 + 49.17 =

(4) 95.64 + 11.53 = (5) 26.86 + 4.12 = (6) 76.06 + 46.68 =

(7) 468.8 + 607.9 = (8) 751.2 + 415.4 = (9) 43.41 + 67.14 =

(10) 943.8 + 827.8 = (11) 74.9 + 54.09 = (12) 834.6 + 620.2 =

(13) 499

.8 + 855.7 = (14) 80.36 + 17.82 = (15) 84.43 + 78.09 =

(16) 9.573 + 8.786 = (17) 752.8 + 598.8 = (18) 60.75 + 61.69 =

(14)

(1) 93.39 + 88.72 =

182

.

11

(2) 341.2 + 936.7 =

1277

.

9

(3) 86.59 + 49.17 =

135

.

76

(4) 95.64 + 11.53 =

107

.

17

(5) 26.86 + 4.12 =

30

.

98

(6) 76.06 + 46.68 =

122

.

74

(7) 468.8 + 607.9 =

1076

.

7

(8) 751.2 + 415.4 =

1166

.

6

(9) 43.41 + 67.14 =

110

.

55

(10) 943

.8 + 827.8 =

1771

.

6

(11) 74.9 + 54.09 =

128

.

99

(12) 834.6 + 620.2 =

1454

.

8

(13) 499.8 + 855.7 =

1355

.

5

(14) 80.36 + 17.82 =

98

.

18

(15) 84.43 + 78.09 =

162

.

52

(16) 9.573 + 8.786 =

18

.

359

(17) 752.8 + 598.8 =

1351

.

6

(18) 60.75 + 61.69 =

122

.

44

(15)

(1) 9

.803 + 3.834 = (2) 1.632 + 7.059 = (3) 649.2 + 717.2 =

(4) 62.79 + 59.37 = (5) 0.835 + 1.052 = (6) 1.626 + 3.903 =

(7) 859.6 + 191.8 = (8) 92.51 + 59.28 = (9) 26.77 + 60.51 =

(10) 17.25 + 17.67 = (11) 5.359 + 2.664 = (12) 2.188 + 7.731 =

(13) 7

.845 + 3.782 = (14) 380.9 + 134.8 = (15) 673.3 + 698.2 =

(16) 591.9 + 19.3 = (17) 4.793 + 2.839 = (18) 41.39 + 49.51 =

(16)

(1) 9.803 + 3.834 =

13

.

637

(2) 1.632 + 7.059 =

8

.

691

(3) 649.2 + 717.2 =

1366

.

4

(4) 62.79 + 59.37 =

122

.

16

(5) 0.835 + 1.052 =

1

.

887

(6) 1.626 + 3.903 =

5

.

529

(7) 859.6 + 191.8 =

1051

.

4

(8) 92.51 + 59.28 =

151

.

79

(9) 26.77 + 60.51 =

87

.

28

(10) 17

.25 + 17.67 =

34

.

92

(11) 5.359 + 2.664 =

8

.

023

(12) 2.188 + 7.731 =

9

.

919

(13) 7.845 + 3.782 =

11

.

627

(14) 380.9 + 134.8 =

515

.

7

(15) 673.3 + 698.2 =

1371

.

5

(16) 591.9 + 19.3 =

611

.

2

(17) 4.793 + 2.839 =

7

.

632

(18) 41.39 + 49.51 =

90

.

9

(17)

(1) 3

.526 + 0.432 = (2) 19.23 + 26.09 = (3) 35.47 + 96.33 =

(4) 283.2 + 386.1 = (5) 19.84 + 36.65 = (6) 8.121 + 2.823 =

(7) 694.8 + 361.9 = (8) 56.39 + 84.07 = (9) 66.31 + 24.37 =

(10) 8.478 + 4.551 = (11) 35.77 + 70.72 = (12) 127.6 + 474.7 =

(13) 4

.562 + 2.091 = (14) 6.8 + 5.032 = (15) 79.25 + 43.97 =

(16) 8.132 + 7.262 = (17) 13.87 + 81.35 = (18) 712.3 + 842.7 =

(18)

(1) 3.526 + 0.432 =

3

.

958

(2) 19.23 + 26.09 =

45

.

32

(3) 35.47 + 96.33 =

131

.

8

(4) 283.2 + 386.1 =

669

.

3

(5) 19.84 + 36.65 =

56

.

49

(6) 8.121 + 2.823 =

10

.

944

(7) 694.8 + 361.9 =

1056

.

7

(8) 56.39 + 84.07 =

140

.

46

(9) 66.31 + 24.37 =

90

.

68

(10) 8

.478 + 4.551 =

13

.

029

(11) 35.77 + 70.72 =

106

.

49

(12) 127.6 + 474.7 =

602

.

3

(13) 4.562 + 2.091 =

6

.

653

(14) 6.8 + 5.032 =

11

.

832

(15) 79.25 + 43.97 =

123

.

22

(16) 8.132 + 7.262 =

15

.

394

(17) 13.87 + 81.35 =

95

.

22

(18) 712.3 + 842.7 =

1555

(19)

(1) 144

.9 + 562.1 = (2) 146.7 + 439.5 = (3) 56.74 + 84.51 =

(4) 61.91 + 82.54 = (5) 101.4 + 261.6 = (6) 8.844 + 3.431 =

(7) 4.259 + 2.421 = (8) 8.02 + 83.77 = (9) 8.489 + 3.932 =

(10) 127.8 + 36.8 = (11) 458.7 + 108.7 = (12) 43.12 + 89.79 =

(13) 54

.99 + 26.52 = (14) 8.693 + 6.095 = (15) 632.7 + 980.1 =

(16) 86.6 + 666.7 = (17) 17.08 + 28.35 = (18) 107.1 + 147.5 =

(20)

(1) 144.9 + 562.1 =

707

(2) 146.7 + 439.5 =

586

.

2

(3) 56.74 + 84.51 =

141

.

25

(4) 61.91 + 82.54 =

144

.

45

(5) 101.4 + 261.6 =

363

(6) 8.844 + 3.431 =

12

.

275

(7) 4.259 + 2.421 =

6

.

68

(8) 8.02 + 83.77 =

91

.

79

(9) 8.489 + 3.932 =

12

.

421

(10) 127

.8 + 36.8 =

164

.

6

(11) 458.7 + 108.7 =

567

.

4

(12) 43.12 + 89.79 =

132

.

91

(13) 54.99 + 26.52 =

81

.

51

(14) 8.693 + 6.095 =

14

.

788

(15) 632.7 + 980.1 =

1612

.

8

(16) 86.6 + 666.7 =

753

.

3

(17) 17.08 + 28.35 =

45

.

43

(18) 107.1 + 147.5 =

254

.

6

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