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  • 两位数与两位数进位加法速算技巧
  • 发布时间:2021-01-13 00:11 | 作者:admin | 来源:未知 | 浏览:
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  • 59 + 85 = 144 —— 24 - 16 = 8 —— 45 + 62 = 107
    19 + 99 = 118 —— 74 + 100 = 174 —— 71 + 65 = 136
    28 - 11 = 17 —— 56 - 48 = 8 —— 32 - 19 = 13
    85 + 17 = 102 —— 74 + 35 = 109 —— 69 + 86 = 155
    35 + 73 = 108 —— 58 + 14 = 72 —— 69 - 50 = 19
    40 + 88 = 128 —— 61 - 20 = 41 —— 60 + 90 = 150
    17 + 45 = 62 —— 98 + 25 = 123 —— 77 + 99 = 176
    96 + 68 = 164 —— 61 + 74 = 135 —— 17 + 11 = 28
    67 + 16 = 83 —— 21 + 44 = 65 —— 49 + 38 = 87
    23 - 14 = 9 —— 41 + 46 = 87 —— 43 + 51 = 94
    97 - 68 = 29 —— 59 + 88 = 147 —— 74 + 12 = 86
    95 + 16 = 111 —— 81 + 67 = 148 —— 63 + 26 = 89
    51 + 25 = 76 —— 46 + 81 = 127 —— 20 - 12 = 8
    31 + 83 = 114 —— 72 - 24 = 48 —— 52 - 50 = 2
    28 - 16 = 12 —— 61 + 24 = 85 —— 96 + 88 = 184
    28 + 92 = 120 —— 58 - 41 = 17 —— 49 + 49 = 98
    56 - 55 = 1 —— 43 - 43 = 0 —— 86 + 29 = 115
    59 - 19 = 40 —— 54 + 23 = 77 —— 90 + 84 = 174
    48 - 37 = 11 —— 84 - 40 = 44 —— 73 + 85 = 158
    64 + 89 = 153 —— 85 - 12 = 73 —— 85 - 75 = 10
    43 - 41 = 2 —— 35 + 55 = 90 —— 38 - 24 = 14
    10 - 10 = 0 —— 63 + 21 = 84 —— 11 - 10 = 1
    70 - 24 = 46 —— 48 - 20 = 28 —— 44 + 34 = 78
    26 + 87 = 113 —— 53 - 37 = 16 —— 92 - 80 = 12
    16 + 37 = 53 —— 49 - 34 = 15 —— 78 - 60 = 18
    42 + 92 = 134 —— 33 + 65 = 98 —— 22 + 82 = 104
    71 - 10 = 61 —— 44 - 36 = 8 —— 13 + 62 = 75
    73 + 33 = 106 —— 97 - 22 = 75 —— 45 - 22 = 23
    14 + 24 = 38 —— 56 + 43 = 99 —— 58 - 26 = 32
    12 - 10 = 2 —— 81 - 47 = 34 —— 71 - 17 = 54
    27 - 25 = 2 —— 78 + 68 = 146 —— 18 - 17 = 1
    66 - 59 = 7 —— 74 - 65 = 9 —— 12 - 12 = 0
    47 - 36 = 11 —— 72 + 40 = 112 —— 97 - 33 = 64
    34 - 20 = 14 —— 74 - 47 = 27 —— 30 + 11 = 41
    76 + 24 = 100 —— 33 + 78 = 111 —— 23 - 11 = 12
    22 + 71 = 93 —— 57 + 11 = 68 —— 46 + 33 = 79
    28 + 20 = 48 —— 30 + 86 = 116 —— 67 + 56 = 123
    48 - 31 = 17 —— 29 - 27 = 2 —— 29 - 27 = 2
    70 - 45 = 25 —— 25 - 21 = 4 —— 62 + 15 = 77
    61 - 42 = 19 —— 97 + 60 = 157 —— 80 + 36 = 116
    23 + 48 = 71 —— 24 + 46 = 70 —— 60 - 10 = 50
    43 + 70 = 113 —— 84 - 33 = 51 —— 82 + 44 = 126
    58 + 86 = 144 —— 66 + 60 = 126 —— 67 - 57 = 10
    21 + 82 = 103 —— 93 + 36 = 129 —— 16 + 52 = 68
    50 - 34 = 16 —— 25 + 28 = 53 —— 76 - 19 = 57
    100 + 67 = 167 —— 57 - 48 = 9 —— 46 + 36 = 82
    32 - 28 = 4 —— 71 - 61 = 10 —— 60 - 14 = 46
    34 + 85 = 119 —— 75 + 98 = 173 —— 60 + 14 = 74
    73 - 51 = 22 —— 83 - 74 = 9 —— 49 - 26 = 23
    56 - 19 = 37 —— 36 - 16 = 20 —— 23 + 66 = 89
    38 - 16 = 22 —— 53 + 12 = 65 —— 96 - 13 = 83
    77 - 55 = 22 —— 59 + 34 = 93 —— 29 + 37 = 66
    49 - 44 = 5 —— 29 - 22 = 7 —— 95 + 88 = 183
    44 - 15 = 29 —— 37 - 35 = 2 —— 14 + 78 = 92
    91 + 46 = 137 —— 17 + 17 = 34 —— 10 - 10 = 0
    39 + 41 = 80 —— 92 - 70 = 22 —— 14 + 34 = 48
    44 - 40 = 4 —— 20 + 55 = 75 —— 81 - 13 = 68
    70 + 42 = 112 —— 38 - 34 = 4 —— 40 - 38 = 2
    27 - 26 = 1 —— 92 - 41 = 51 —— 24 - 19 = 5
    71 - 13 = 58 —— 41 + 63 = 104 —— 29 + 98 = 127
    79 + 56 = 135 —— 27 + 32 = 59 —— 31 + 70 = 101
    16 + 53 = 69 —— 71 - 22 = 49 —— 38 - 25 = 13
    84 - 82 = 2 —— 64 - 37 = 27 —— 85 + 85 = 170
    65 - 35 = 30 —— 34 - 17 = 17 —— 78 - 60 = 18
    86 - 55 = 31 —— 73 + 33 = 106 —— 81 - 73 = 8
    58 - 33 = 25 —— 22 - 19 = 3 —— 44 - 35 = 9
    51 - 32 = 19 —— 36 + 27 = 63 —— 67 + 70 = 137
    62 - 20 = 42 —— 77 + 66 = 143 —— 11 + 59 = 70
    15 - 14 = 1 —— 98 + 97 = 195 —— 27 - 17 = 10
    14 + 88 = 102 —— 55 + 40 = 95 —— 96 + 18 = 114
    95 + 22 = 117 —— 53 + 45 = 98 —— 73 - 18 = 55
    14 + 26 = 40 —— 19 + 82 = 101 —— 69 - 30 = 39
    17 - 11 = 6 —— 66 - 11 = 55 —— 65 - 47 = 18
    100 + 49 = 149 —— 46 + 45 = 91 —— 18 + 17 = 35
    82 + 94 = 176 —— 43 + 57 = 100 —— 31 + 90 = 121
    79 + 15 = 94 —— 47 + 98 = 145 —— 20 + 56 = 76
    83 + 27 = 110 —— 50 - 36 = 14 —— 43 - 18 = 25
    100 - 55 = 45 —— 44 + 13 = 57 —— 39 - 12 = 27
    95 + 88 = 183 —— 49 + 62 = 111 —— 93 + 15 = 108
    12 - 12 = 0 —— 57 - 48 = 9 —— 91 - 25 = 66
    15 - 11 = 4 —— 76 - 55 = 21 —— 94 + 45 = 139
    40 + 60 = 100 —— 68 + 28 = 96 —— 11 + 34 = 45
    24 + 66 = 90 —— 80 - 31 = 49 —— 19 - 13 = 6
    17 + 59 = 76 —— 43 - 22 = 21 —— 57 + 74 = 131
    74 - 71 = 3 —— 79 - 23 = 56 —— 62 + 80 = 142
    94 - 78 = 16 —— 64 + 96 = 160 —— 93 + 99 = 192
    68 - 33 = 35 —— 89 + 59 = 148 —— 92 - 32 = 60
    36 + 79 = 115 —— 16 - 11 = 5 —— 84 + 77 = 161
    16 - 10 = 6 —— 60 - 46 = 14 —— 35 + 20 = 55
    55 - 44 = 11 —— 82 - 31 = 51 —— 61 - 30 = 31
    85 - 53 = 32 —— 24 - 23 = 1 —— 72 - 14 = 58
    29 - 25 = 4 —— 80 - 72 = 8 —— 69 + 79 = 148
    55 - 23 = 32 —— 28 + 60 = 88 —— 94 - 31 = 63
    99 - 73 = 26 —— 46 - 24 = 22 —— 94 - 73 = 21
    37 - 19 = 18 —— 33 - 18 = 15 —— 89 - 25 = 64
    58 + 91 = 149 —— 91 + 58 = 149 —— 25 - 18 = 7
    36 - 28 = 8 —— 43 + 47 = 90 —— 67 + 40 = 107
    23 + 18 = 41 —— 99 + 89 = 188 —— 55 + 27 = 82
    57 + 48 = 105 —— 82 + 67 = 149 —— 10 + 15 = 25
    100 - 61 = 39 —— 62 - 18 = 44 —— 64 - 12 = 52

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