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) 7

.5 + 0.9 = (2) 8.5 + 3.6 = (3) 8.1 + 2.7 =

(4) 0.17 + 0.98 = (5) 0.27 + 0.57 = (6) 9.3 + 9.1 =

(7) 1.8 + 8.6 = (8) 5.7 + 7.4 = (9) 8.2 + 5.3 =

(10) 2.3 + 4.4 = (11) 7.8 + 5.7 = (12) 9.6 + 1.3 =

(13) 9

.7 + 1.4 = (14) 1.1 + 8.7 = (15) 0.91 + 0.32 =

(16) 6.7 + 6.5 = (17) 7.4 + 9.2 = (18) 0.29 + 0.94 =

(2)

(1) 7.5 + 0.9 =

8

.

4

(2) 8.5 + 3.6 =

12

.

1

(3) 8.1 + 2.7 =

10

.

8

(4) 0.17 + 0.98 =

1

.

15

(5) 0.27 + 0.57 =

0

.

84

(6) 9.3 + 9.1 =

18

.

4

(7) 1.8 + 8.6 =

10

.

4

(8) 5.7 + 7.4 =

13

.

1

(9) 8.2 + 5.3 =

13

.

5

(10) 2

.3 + 4.4 =

6

.

7

(11) 7.8 + 5.7 =

13

.

5

(12) 9.6 + 1.3 =

10

.

9

(13) 9.7 + 1.4 =

11

.

1

(14) 1.1 + 8.7 =

9

.

8

(15) 0.91 + 0.32 =

1

.

23

(16) 6.7 + 6.5 =

13

.

2

(17) 7.4 + 9.2 =

16

.

6

(18) 0.29 + 0.94 =

1

.

23

(3)

(1) 8

.1 + 8.9 = (2) 5.6 + 9.1 = (3) 0.44 + 0.34 =

(4) 7.9 + 2.1 = (5) 0.48 + 0.24 = (6) 9.3 + 5.6 =

(7) 0.63 + 0.18 = (8) 0.56 + 0.41 = (9) 0.33 + 0.4 =

(10) 6.6 + 4.3 = (11) 3.9 + 6.1 = (12) 8.8 + 8.9 =

(13) 0

.45 + 0.58 = (14) 7.4 + 1.3 = (15) 0.75 + 0.69 =

(16) 0.14 + 0.37 = (17) 0.64 + 0.02 = (18) 5.3 + 4.8 =

(4)

(1) 8.1 + 8.9 =

17

(2) 5.6 + 9.1 =

14

.

7

(3) 0.44 + 0.34 =

0

.

78

(4) 7.9 + 2.1 =

10

(5) 0.48 + 0.24 =

0

.

72

(6) 9.3 + 5.6 =

14

.

9

(7) 0.63 + 0.18 =

0

.

81

(8) 0.56 + 0.41 =

0

.

97

(9) 0.33 + 0.4 =

0

.

73

(10) 6

.6 + 4.3 =

10

.

9

(11) 3.9 + 6.1 =

10

(12) 8.8 + 8.9 =

17

.

7

(13) 0.45 + 0.58 =

1

.

03

(14) 7.4 + 1.3 =

8

.

7

(15) 0.75 + 0.69 =

1

.

44

(16) 0.14 + 0.37 =

0

.

51

(17) 0.64 + 0.02 =

0

.

66

(18) 5.3 + 4.8 =

10

.

1

(5)

(1) 3

.7 + 9.4 = (2) 4.2 + 6.8 = (3) 0.6 + 0.93 =

(4) 3.5 + 8.3 = (5) 0.21 + 0.89 = (6) 0.42 + 0.74 =

(7) 9.4 + 4.3 = (8) 0.99 + 0.17 = (9) 2.5 + 2.3 =

(10) 0.11 + 0.38 = (11) 0.38 + 0.39 = (12) 0.19 + 0.24 =

(13) 5

.2 + 2.6 = (14) 7.5 + 4.9 = (15) 2.4 + 6.2 =

(16) 3.7 + 7.1 = (17) 0.26 + 0.26 = (18) 3.5 + 3.8 =

(6)

(1) 3.7 + 9.4 =

13

.

1

(2) 4.2 + 6.8 =

11

(3) 0.6 + 0.93 =

1

.

53

(4) 3.5 + 8.3 =

11

.

8

(5) 0.21 + 0.89 =

1

.

1

(6) 0.42 + 0.74 =

1

.

16

(7) 9.4 + 4.3 =

13

.

7

(8) 0.99 + 0.17 =

1

.

16

(9) 2.5 + 2.3 =

4

.

8

(10) 0

.11 + 0.38 =

0

.

49

(11) 0.38 + 0.39 =

0

.

77

(12) 0.19 + 0.24 =

0

.

43

(13) 5.2 + 2.6 =

7

.

8

(14) 7.5 + 4.9 =

12

.

4

(15) 2.4 + 6.2 =

8

.

6

(16) 3.7 + 7.1 =

10

.

8

(17) 0.26 + 0.26 =

0

.

52

(18) 3.5 + 3.8 =

7

.

3

(7)

(1) 0

.27 + 0.89 = (2) 3.3 + 3.5 = (3) 9.8 + 9.1 =

(4) 0.44 + 0.78 = (5) 6.3 + 6.1 = (6) 3.4 + 8.5 =

(7) 8.9 + 0.4 = (8) 3.5 + 5.3 = (9) 0.87 + 0.32 =

(10) 4.5 + 1.2 = (11) 5.8 + 8.9 = (12) 3.7 + 8.4 =

(13) 4

.1 + 2.3 = (14) 0.32 + 0.07 = (15) 0.11 + 0.19 =

(16) 9.8 + 1.9 = (17) 0.26 + 0.5 = (18) 1.5 + 4.1 =

(8)

(1) 0.27 + 0.89 =

1

.

16

(2) 3.3 + 3.5 =

6

.

8

(3) 9.8 + 9.1 =

18

.

9

(4) 0.44 + 0.78 =

1

.

22

(5) 6.3 + 6.1 =

12

.

4

(6) 3.4 + 8.5 =

11

.

9

(7) 8.9 + 0.4 =

9

.

3

(8) 3.5 + 5.3 =

8

.

8

(9) 0.87 + 0.32 =

1

.

19

(10) 4

.5 + 1.2 =

5

.

7

(11) 5.8 + 8.9 =

14

.

7

(12) 3.7 + 8.4 =

12

.

1

(13) 4.1 + 2.3 =

6

.

4

(14) 0.32 + 0.07 =

0

.

39

(15) 0.11 + 0.19 =

0

.

3

(16) 9.8 + 1.9 =

11

.

7

(17) 0.26 + 0.5 =

0

.

76

(18) 1.5 + 4.1 =

5

.

6

(9)

(1) 0

.13 + 0.27 = (2) 0.06 + 0.31 = (3) 0.74 + 0.32 =

(4) 7.2 + 7.6 = (5) 0.85 + 0.39 = (6) 0.34 + 0.89 =

(7) 0.32 + 0.84 = (8) 0.99 + 0.54 = (9) 0.39 + 0.69 =

(10) 6.2 + 1.4 = (11) 0.91 + 0.07 = (12) 9.6 + 1.4 =

(13) 0

.13 + 0.22 = (14) 9.9 + 9 = (15) 0.32 + 0.34 =

(16) 0.63 + 0.79 = (17) 0.61 + 0.76 = (18) 0.81 + 0.92 =

(10)

(1) 0.13 + 0.27 =

0

.

4

(2) 0.06 + 0.31 =

0

.

37

(3) 0.74 + 0.32 =

1

.

06

(4) 7.2 + 7.6 =

14

.

8

(5) 0.85 + 0.39 =

1

.

24

(6) 0.34 + 0.89 =

1

.

23

(7) 0.32 + 0.84 =

1

.

16

(8) 0.99 + 0.54 =

1

.

53

(9) 0.39 + 0.69 =

1

.

08

(10) 6

.2 + 1.4 =

7

.

6

(11) 0.91 + 0.07 =

0

.

98

(12) 9.6 + 1.4 =

11

(13) 0.13 + 0.22 =

0

.

35

(14) 9.9 + 9 =

18

.

9

(15) 0.32 + 0.34 =

0

.

66

(16) 0.63 + 0.79 =

1

.

42

(17) 0.61 + 0.76 =

1

.

37

(18) 0.81 + 0.92 =

1

.

73

(11)

(1) 4

.8 + 4.9 = (2) 9.2 + 1.1 = (3) 0.11 + 0.23 =

(4) 6.5 + 7.9 = (5) 6.5 + 2.9 = (6) 0.67 + 0.1 =

(7) 0.18 + 0.5 = (8) 0.17 + 0.95 = (9) 7.8 + 7.7 =

(10) 0.69 + 0.09 = (11) 1.2 + 7.6 = (12) 5.9 + 0.1 =

(13) 0

.7 + 0.61 = (14) 8.2 + 5.9 = (15) 3.5 + 1.2 =

(16) 0.04 + 0.11 = (17) 0.08 + 0.31 = (18) 6.6 + 1.9 =

(12)

(1) 4.8 + 4.9 =

9

.

7

(2) 9.2 + 1.1 =

10

.

3

(3) 0.11 + 0.23 =

0

.

34

(4) 6.5 + 7.9 =

14

.

4

(5) 6.5 + 2.9 =

9

.

4

(6) 0.67 + 0.1 =

0

.

77

(7) 0.18 + 0.5 =

0

.

68

(8) 0.17 + 0.95 =

1

.

12

(9) 7.8 + 7.7 =

15

.

5

(10) 0

.69 + 0.09 =

0

.

78

(11) 1.2 + 7.6 =

8

.

8

(12) 5.9 + 0.1 =

6

(13) 0.7 + 0.61 =

1

.

31

(14) 8.2 + 5.9 =

14

.

1

(15) 3.5 + 1.2 =

4

.

7

(16) 0.04 + 0.11 =

0

.

15

(17) 0.08 + 0.31 =

0

.

39

(18) 6.6 + 1.9 =

8

.

5

(13)

(1) 0

.84 + 0.54 = (2) 0.21 + 0.82 = (3) 0.31 + 0.16 =

(4) 0.87 + 0.76 = (5) 0.19 + 0.66 = (6) 0.95 + 0.68 =

(7) 0.28 + 0.52 = (8) 0.16 + 0.92 = (9) 6.9 + 0.3 =

(10) 0.98 + 0.51 = (11) 0.96 + 0.61 = (12) 0.14 + 0.18 =

(13) 0

.48 + 0.79 = (14) 0.12 + 0.29 = (15) 0.79 + 0.43 =

(16) 3.7 + 1.3 = (17) 6.9 + 1.7 = (18) 2.8 + 2.5 =

(14)

(1) 0.84 + 0.54 =

1

.

38

(2) 0.21 + 0.82 =

1

.

03

(3) 0.31 + 0.16 =

0

.

47

(4) 0.87 + 0.76 =

1

.

63

(5) 0.19 + 0.66 =

0

.

85

(6) 0.95 + 0.68 =

1

.

63

(7) 0.28 + 0.52 =

0

.

8

(8) 0.16 + 0.92 =

1

.

08

(9) 6.9 + 0.3 =

7

.

2

(10) 0

.98 + 0.51 =

1

.

49

(11) 0.96 + 0.61 =

1

.

57

(12) 0.14 + 0.18 =

0

.

32

(13) 0.48 + 0.79 =

1

.

27

(14) 0.12 + 0.29 =

0

.

41

(15) 0.79 + 0.43 =

1

.

22

(16) 3.7 + 1.3 =

5

(17) 6.9 + 1.7 =

8

.

6

(18) 2.8 + 2.5 =

5

.

3

(15)

(1) 0

.78 + 0.7 = (2) 8.3 + 6.2 = (3) 9.2 + 0.1 =

(4) 0.13 + 0.29 = (5) 0.5 + 5.9 = (6) 0.89 + 0.3 =

(7) 0.23 + 0.92 = (8) 0.94 + 0.95 = (9) 0.22 + 0.66 =

(10) 0.24 + 0.45 = (11) 6.6 + 8.3 = (12) 0.5 + 2.2 =

(13) 3

.8 + 3.7 = (14) 0.53 + 0.76 = (15) 0.13 + 0.8 =

(16) 2.6 + 4.4 = (17) 0.92 + 0.2 = (18) 0.8 + 8.2 =

(16)

(1) 0.78 + 0.7 =

1

.

48

(2) 8.3 + 6.2 =

14

.

5

(3) 9.2 + 0.1 =

9

.

3

(4) 0.13 + 0.29 =

0

.

42

(5) 0.5 + 5.9 =

6

.

4

(6) 0.89 + 0.3 =

1

.

19

(7) 0.23 + 0.92 =

1

.

15

(8) 0.94 + 0.95 =

1

.

89

(9) 0.22 + 0.66 =

0

.

88

(10) 0

.24 + 0.45 =

0

.

69

(11) 6.6 + 8.3 =

14

.

9

(12) 0.5 + 2.2 =

2

.

7

(13) 3.8 + 3.7 =

7

.

5

(14) 0.53 + 0.76 =

1

.

29

(15) 0.13 + 0.8 =

0

.

93

(16) 2.6 + 4.4 =

7

(17) 0.92 + 0.2 =

1

.

12

(18) 0.8 + 8.2 =

9

(17)

(1) 1

.9 + 6.7 = (2) 0.75 + 0.71 = (3) 0.39 + 0.98 =

(4) 0.33 + 0.51 = (5) 0.79 + 0.81 = (6) 4.6 + 1.5 =

(7) 6.4 + 5.9 = (8) 0.92 + 0.61 = (9) 0.75 + 0.47 =

(10) 0.42 + 0.6 = (11) 0.73 + 0.02 = (12) 9.9 + 9.7 =

(13) 0

.66 + 0.11 = (14) 0.24 + 0.12 = (15) 0.76 + 0.81 =

(16) 0.69 + 0.57 = (17) 7.8 + 5 = (18) 0.46 + 0.28 =

(18)

(1) 1.9 + 6.7 =

8

.

6

(2) 0.75 + 0.71 =

1

.

46

(3) 0.39 + 0.98 =

1

.

37

(4) 0.33 + 0.51 =

0

.

84

(5) 0.79 + 0.81 =

1

.

6

(6) 4.6 + 1.5 =

6

.

1

(7) 6.4 + 5.9 =

12

.

3

(8) 0.92 + 0.61 =

1

.

53

(9) 0.75 + 0.47 =

1

.

22

(10) 0

.42 + 0.6 =

1

.

02

(11) 0.73 + 0.02 =

0

.

75

(12) 9.9 + 9.7 =

19

.

6

(13) 0.66 + 0.11 =

0

.

77

(14) 0.24 + 0.12 =

0

.

36

(15) 0.76 + 0.81 =

1

.

57

(16) 0.69 + 0.57 =

1

.

26

(17) 7.8 + 5 =

12

.

8

(18) 0.46 + 0.28 =

0

.

74

(19)

(1) 4

.2 + 2.4 = (2) 0.22 + 0.26 = (3) 9.1 + 7.9 =

(4) 0.69 + 0.63 = (5) 0.17 + 0.42 = (6) 0.58 + 0.63 =

(7) 5.7 + 0.3 = (8) 1.2 + 2.8 = (9) 4.8 + 9.1 =

(10) 0.8 + 8.1 = (11) 6.7 + 3.2 = (12) 1.1 + 2.2 =

(13) 0

.99 + 0.89 = (14) 9.5 + 2.8 = (15) 4.4 + 4.4 =

(16) 0.22 + 0.66 = (17) 0.7 + 4.9 = (18) 0.54 + 0.03 =

(20)

(1) 4.2 + 2.4 =

6

.

6

(2) 0.22 + 0.26 =

0

.

48

(3) 9.1 + 7.9 =

17

(4) 0.69 + 0.63 =

1

.

32

(5) 0.17 + 0.42 =

0

.

59

(6) 0.58 + 0.63 =

1

.

21

(7) 5.7 + 0.3 =

6

(8) 1.2 + 2.8 =

4

(9) 4.8 + 9.1 =

13

.

9

(10) 0

.8 + 8.1 =

8

.

9

(11) 6.7 + 3.2 =

9

.

9

(12) 1.1 + 2.2 =

3

.

3

(13) 0.99 + 0.89 =

1

.

88

(14) 9.5 + 2.8 =

12

.

3

(15) 4.4 + 4.4 =

8

.

8

(16) 0.22 + 0.66 =

0

.

88

(17) 0.7 + 4.9 =

5

.

6

(18) 0.54 + 0.03 =

0

.

57

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