. .

1.

2.

. () , () .

1.

2.

(8 )

. .

(14 )

90

23

86

43

18

51

7

. .

. .

1.

23

54

62

47

18

3 = _______

4 = _______

6 = _______

4 = _______

8 = _______

30

87

17

94

73

3 = _______

7 = _______

1 = _______

4 = _______

3 = _______

(5 )

(5 )

. .

2. 34 + 5=.

1. 12 + 4 =.

4. 45 + 8 =. 3. 66 + 7=.

5. 78 12

=.

6. 99 45

=.

8. 87 29

=.

7. 75 56=.

(16 )

. .

(6 )

. .

1. . 2 + .1= ___________

2. . 5 + . 4 = ___________

3. . 6 - . 1= ___________

4. . 8 - . 5 = ___________

5. . 3 + . 4 =______

6. . 2 + . 6 =______

7. . 1 + . 5 =______

8. . 9 . 2 =______

10. . 6 . 5 =______

9. . 7 . 2 =______

(20 )

. .

1. 13

10 11 12 13 14 15 16 17 18 19 20

2. 26

20 21 22 23 24 25 26 27 28 29 30

3. 72

70 71 72 73 74 75 76 77 78 79 80

. .

1. 11 2. 38

3. 57 4. 93

(14 )

. .

1. + =

2

+ =

3. 5 4 . ?

+ =

4. 12 , 8 . ?

+ =

5.

29 . 8 . ?

_ =

6. .

36 . 13 . ? _ =

(12 )

:

. 1. 5 2. 3 . . 1. 86 2. 23 3. 90 4. 18 5. 43 6. 7 7. 51 . 1. 2. 3. 4. 5. . 1. 30 2. 7 3. 10 4. 4 5. 3 . 1. 16 2. 39 3. 73 4. 53 5. 66 6. 54 7. 19 8. 58 . 1. 2. 3. 4. 5. 6.

. 1. 3 2. 9 3. 5 4. 3 5. 7 6. 8

7. 6

. 1. 10 2. 30 3. 70

. 1. 10 2. 40 3. 60 4. 90

. 1. 15 + 6 = 21 2. 10 + 6 = 16 3. 5 + 4 = 9 4. 12 + 8 = 20 5. 29 8 = 21 6. 36 13 = 23