笔算练习

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57-28= 44-29= 61+19= 97-18= 78-69=

32+49= 19+59= 77-19= 69+17= 77-68=

22+46= 58+29 42+29= 28+68= 63+19=

66+26= 98-69= 33+39= 71-64= 73-54=

43-15= 87-38= 19+63= 94-27= 46-28=

21-19= 75-39= 55-38= 57+33= 87-38= 26+46= 21-19= 19+64= 88-29= 28+68=

53+37= 96-19= 86-37= 39+27= 26+68=

28-19= 27+35= 22-13= 69+13= 45-27=

53-39= 37-18= 43+19= 28+34= 26+44=

66+29= 24-18= 26-17= 32-19= 74-37=

31-15= 75-59= 29+35= 94-47= 66-57=

93-59= 44-27= 85-27= 90-67= 86-19=

72-54=

78-19=

81-34=

81-37=

63-28= 31-16=

44-29=

92-67=

75-47=

60-23= 95-29=

93-64=

81-17=

70-56=

72-17=

72-47=

82-37=

64-29=

85-29=

31-13= 72-53=

80-18=

70-47=

61-19=

85-28=

86-37=

54-39=

34-16=

94-67=

88-39= 91-14=

62-27=

70-52=

91-67=

83-19=

73-54=

74-19=

73-44=

83-24=

91-22= 33-16=

71-53=

80-16=

91-16=

73-47=

81-22=

83-37=

61-23=

30-16=

92-64= 84-17=

73-56=

75-17=

90-12=

71-47=

60-29=

83-29=

30-13=

96-67=

87-18= 76-47=

66-19=

87-28=

84-37=

58-39=

35-16=

82-13=

81-39=

63-27=

84-27= 75-19=

60-28=

42-29=

93-67=

81-16=

70-51=

84-39=

95-16=

55-39=

96-29= 80-17=

74-56=

73-17=

61-12=

67-29=

45-27=