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Addition and subtraction in the number range up ...

German 20 Public

A mental calculation exercise (addition and subtraction up to 100).

Study Slideshow

44+32

77

10

87-29

58

15

56+14

70

10

99-47

52

15

63+25

88

10

74-38

36

15

12+48

60

10

81-23

58

15

27+59

86

10

90-54

36

15

35+44

79

10

66-19

47

15

50+28

78

10

92-41

51

15

71+13

84

10

88-26

62

15

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