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二年级数学减法口算练习退位减法口算300题

发布时间:2021-01-29 09:45

49-21 =        47-22 =        70-45 =        74-71 =

54-26 =        71-42 =        64-27 =        48-12 =

85-6 =         57-28 =        91-3 =         85-78 =

80-16 =        45-13 =        89-3 =         84-43 =

91-72 =        83-37 =        82-39 =        73-57 =

64-57 =        79-21 =        43-21 =        63-6 =

41-11 =        41-9 =         68-48 =        95-19 =

84-33 =        68-7 =         79-57 =        58-30 =

39-9 =         96-70 =        86-6 =         48-11 =

86-26 =        81-66 =        79-66 =        52-45 =

85-21 =        81-71 =        39-13 =        91-21 =

39-37 =        45-36 =        56-38 =        87-72 =

73-15 =        90-73 =        43-33 =        79-39 =

55-33 =        80-13 =        41-11 =        49-27 =

42-3 =         53-40 =        80-53 =        72-55 =

41-30 =        73-18 =        84-7 =         96-41 =

56-7 =         59-54 =        58-39 =        43-36 =

67-15 =        59-20 =        49-18 =        91-66 =

72-21 =        51-41 =        77-30 =        68-35 =

84-15 =        45-11 =        47-22 =        97-93 =

66-59 =        53-36 =        53-30 =        84-24 =

54-26 =        75-28 =        46-39 =        90-54 =

39-33 =        67-6 =         50-3 =         97-72 =

65-14 =        84-12 =        47-45 =        81-40 =

73-9 =         92-65 =        60-8 =         66-53 =

89-41 =        75-49 =        93-57 =        75-36 =

69-50 =        81-45 =        43-34 =        96-24 =

90-15 =        72-40 =        86-21 =        94-79 =

74-14 =        53-21 =        67-10 =        90-47 =

89-72 =        50-38 =        64-13 =        79-8 =

40-14 =        82-56 =        49-44 =        46-25 =

48-14 =        65-47 =        90-31 =        57-18 =

83-57 =        39-31 =        81-5 =         78-28 =

93-80 =        91-34 =        71-28 =        62-36 =

69-12 =        76-22 =        39-32 =        79-73 =

65-25 =        82-61 =        44-30 =        61-40 =

40-4 =         60-47 =        67-7 =         71-62 =

88-7 =         77-53 =        59-34 =        41-27 =

61-25 =        50-2 =         56-14 =        57-13 =

96-15 =        49-28 =        93-39 =        74-68 =

59-18 =        82-22 =        82-61 =        80-7 =

43-34 =        85-73 =        41-35 =        60-35 =

56-27 =        61-52 =        71-31 =        76-70 =

41-13 =        84-60 =        55-25 =        75-22 =

73-61 =        89-80 =        60-7 =         96-42 =

56-36 =        67-7 =         41-28 =        60-37 =

69-16 =        80-10 =        62-60 =        77-2 =

77-44 =        48-34 =        92-3 =         95-73 =

39-15 =        96-73 =        73-37 =        89-57 =

42-26 =        80-35 =        75-59 =        92-19 =

96-17 =        68-13 =        53-51 =        68-59 =

96-69 =        42-9 =         57-8 =         87-79 =

75-9 =         61-52 =        67-37 =        73-70 =

41-24 =        94-49 =        93-34 =        68-39 =

61-58 =        48-24 =        51-15 =        84-43 =

93-57 =        64-13 =        82-61 =        91-46 =

89-46 =        48-34 =        55-32 =        74-56 =

93-9 =         41-2 =         45-4 =         80-74 =

56-8 =         88-26 =        60-16 =        48-44 =

92-76 =        44-28 =        43-31 =        97-40 =

40-16 =        73-37 =        44-8 =         96-77 =

88-76 =        62-37 =        80-7 =         56-16 =

61-45 =        73-21 =        54-48 =        47-23 =

59-3 =         73-63 =        69-43 =        43-15 =

56-30 =        85-57 =        79-36 =        63-48 =

47-23 =        70-0 =         68-22 =        65-23 =

94-57 =        84-22 =        44-26 =        58-16 =

60-8 =         68-23 =        50-41 =        70-62 =

95-29 =        66-35 =        91-46 =        70-41 =

40-12 =        43-29 =        77-63 =        92-77 =

67-27 =        42-10 =        96-22 =        88-47 =

73-26 =        45-39 =        87-55 =        88-59 =

68-23 =        39-32 =        81-47 =        97-58 =

94-77 =        66-39 =        39-16 =        43-31 =

67-35 =        39-28 =        76-56 =        91-46 =

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