1 of 10

10ο

ΣΤΟ ΤΕΤΡΑΔΙΟ

2 of 10

2 8

20

8

10

10

4

4

28 : 2 = 14

2 Χ 14 = 28

14 + 14 = 28

10 + 4 = 14

.10.22

ΤΟ ΜΙΣΟ

3 of 10

3 6

30

6

15

15

3

3

36 : 2 = 18

2 Χ 18 = 36

18 + 18 = 36

15 + 3 = 18

4 of 10

5 4

50

4

25

25

2

2

56 : 2 = 27

2 Χ 27 = 54

27 + 27 = 54

15 + 3 = 27

5 of 10

19 + 19 =

(10 + 9) + (10 + 9) =

(10 + 10) + (9 + 9) =

20 + 18 =

(20 + 10) + 8 =

ΤΟ ΔΙΠΛΑΣΙΟ

30 + 8 =

38

6 of 10

37 + 37 =

(30 + 7) + (30 + 7) =

(30 + 30) + (7 + 7) =

60 + 14 =

(60 + 10) + 4 =

ΤΟ ΔΙΠΛΑΣΙΟ

70 + 4 =

74

7 of 10

29 + 29 =

(20 + 9) + (20 + 9) =

(20 + 20) + (9 + 9) =

40 + 18 =

(40 + 10) + 8 =

ΤΟ ΔΙΠΛΑΣΙΟ

50 + 8 =

58

8 of 10

6 +

= 52

52 - 6 =

7 +

= 61

61 -7 =

45

46

54

4 +

= 65

65 - 4 = 61

2 +

61

= 94

94 - 2 = 92

92

46

9 of 10

ΑΝΕΒΑΙΝΩ ΚΑΙ ΚΑΤΕΒΑΙΝΩ

1 ΔΕΚΑΔΑ ΚΑΙ 1 ΜΟΝΑΔΑ

10 of 10

45

35

55

44

46

87

77

97

86

88

70

60

80

69

71