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  • 两位数加法速算技巧教程
  • 发布时间:2021-01-13 00:12 | 作者:admin | 来源:未知 | 浏览:
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  • 50 + 54 = 104 —— 48 + 98 = 146 —— 41 + 62 = 103
    28 - 11 = 17 —— 79 + 44 = 123 —— 95 + 52 = 147
    20 + 19 = 39 —— 33 - 24 = 9 —— 80 + 97 = 177
    73 + 74 = 147 —— 53 - 21 = 32 —— 41 + 38 = 79
    48 + 76 = 124 —— 11 - 10 = 1 —— 18 - 12 = 6
    48 - 39 = 9 —— 99 + 16 = 115 —— 21 + 57 = 78
    27 - 23 = 4 —— 59 + 96 = 155 —— 53 - 27 = 26
    82 + 54 = 136 —— 26 - 12 = 14 —— 51 + 79 = 130
    90 + 30 = 120 —— 87 + 28 = 115 —— 70 - 60 = 10
    93 + 82 = 175 —— 99 + 60 = 159 —— 47 - 35 = 12
    89 - 17 = 72 —— 82 - 39 = 43 —— 68 + 66 = 134
    86 + 83 = 169 —— 62 + 72 = 134 —— 23 + 93 = 116
    60 - 31 = 29 —— 94 + 84 = 178 —— 89 + 64 = 153
    21 - 14 = 7 —— 69 - 21 = 48 —— 83 - 16 = 67
    70 + 74 = 144 —— 96 - 20 = 76 —— 49 + 74 = 123
    87 + 36 = 123 —— 19 + 14 = 33 —— 84 + 46 = 130
    91 - 89 = 2 —— 17 - 12 = 5 —— 58 + 83 = 141
    28 + 19 = 47 —— 88 + 65 = 153 —— 18 + 75 = 93
    12 - 12 = 0 —— 61 + 54 = 115 —— 91 + 77 = 168
    82 - 53 = 29 —— 92 - 62 = 30 —— 14 - 12 = 2
    35 + 38 = 73 —— 72 - 54 = 18 —— 43 - 10 = 33
    47 - 15 = 32 —— 48 - 15 = 33 —— 32 + 74 = 106
    67 - 63 = 4 —— 13 - 10 = 3 —— 74 + 94 = 168
    61 + 73 = 134 —— 47 + 100 = 147 —— 93 - 25 = 68
    78 + 75 = 153 —— 98 + 21 = 119 —— 96 + 96 = 192
    79 + 36 = 115 —— 63 + 93 = 156 —— 81 + 74 = 155
    97 - 82 = 15 —— 20 + 14 = 34 —— 68 - 34 = 34
    59 + 53 = 112 —— 11 - 11 = 0 —— 47 + 12 = 59
    75 + 81 = 156 —— 98 + 63 = 161 —— 61 + 91 = 152
    72 + 31 = 103 —— 60 - 31 = 29 —— 55 - 31 = 24
    37 - 26 = 11 —— 62 + 30 = 92 —— 30 + 42 = 72
    47 - 33 = 14 —— 63 - 30 = 33 —— 28 - 13 = 15
    17 - 16 = 1 —— 17 - 13 = 4 —— 13 + 95 = 108
    24 - 10 = 14 —— 25 + 86 = 111 —— 48 - 48 = 0
    16 + 62 = 78 —— 18 - 17 = 1 —— 96 - 68 = 28
    62 - 42 = 20 —— 30 + 68 = 98 —— 55 + 78 = 133
    69 + 44 = 113 —— 94 + 85 = 179 —— 69 - 18 = 51
    13 + 85 = 98 —— 66 - 55 = 11 —— 42 + 99 = 141
    69 - 33 = 36 —— 54 - 53 = 1 —— 29 + 76 = 105
    76 + 80 = 156 —— 65 - 28 = 37 —— 75 - 69 = 6
    73 - 23 = 50 —— 44 - 38 = 6 —— 24 + 55 = 79
    78 + 28 = 106 —— 66 + 23 = 89 —— 62 - 49 = 13
    83 - 40 = 43 —— 58 - 46 = 12 —— 41 - 24 = 17
    54 - 12 = 42 —— 33 + 60 = 93 —— 27 - 10 = 17
    76 - 21 = 55 —— 92 + 69 = 161 —— 22 + 80 = 102
    23 - 20 = 3 —— 22 - 13 = 9 —— 25 - 14 = 11
    98 - 54 = 44 —— 95 - 14 = 81 —— 99 + 25 = 124
    61 + 84 = 145 —— 99 + 86 = 185 —— 41 + 19 = 60
    40 - 32 = 8 —— 52 + 99 = 151 —— 90 - 75 = 15
    21 + 33 = 54 —— 76 - 74 = 2 —— 90 - 76 = 14
    93 - 14 = 79 —— 36 - 29 = 7 —— 66 - 31 = 35
    69 - 45 = 24 —— 26 + 14 = 40 —— 13 + 97 = 110
    24 + 40 = 64 —— 26 - 20 = 6 —— 81 - 16 = 65
    88 + 30 = 118 —— 72 + 19 = 91 —— 58 - 52 = 6
    85 - 17 = 68 —— 35 - 26 = 9 —— 25 - 23 = 2
    95 + 86 = 181 —— 26 + 48 = 74 —— 59 - 46 = 13
    25 - 18 = 7 —— 29 - 23 = 6 —— 48 - 21 = 27
    14 - 11 = 3 —— 42 - 16 = 26 —— 76 + 33 = 109
    37 + 62 = 99 —— 38 + 35 = 73 —— 54 + 97 = 151
    46 - 11 = 35 —— 49 - 36 = 13 —— 86 - 82 = 4
    59 + 65 = 124 —— 85 - 43 = 42 —— 64 + 58 = 122
    70 + 12 = 82 —— 61 + 10 = 71 —— 85 + 51 = 136
    55 - 49 = 6 —— 83 + 87 = 170 —— 37 - 21 = 16
    55 - 47 = 8 —— 18 - 14 = 4 —— 45 + 98 = 143
    91 + 87 = 178 —— 26 - 17 = 9 —— 91 - 55 = 36
    54 + 90 = 144 —— 19 - 18 = 1 —— 48 + 49 = 97
    64 - 43 = 21 —— 16 - 14 = 2 —— 61 + 23 = 84
    53 + 52 = 105 —— 31 + 38 = 69 —— 76 - 22 = 54
    51 + 43 = 94 —— 25 + 15 = 40 —— 67 + 25 = 92
    67 + 16 = 83 —— 17 - 11 = 6 —— 70 - 49 = 21
    33 - 12 = 21 —— 88 + 15 = 103 —— 44 + 52 = 96
    81 + 95 = 176 —— 94 - 69 = 25 —— 19 + 63 = 82
    52 - 28 = 24 —— 21 - 16 = 5 —— 70 + 59 = 129
    80 + 27 = 107 —— 82 + 80 = 162 —— 87 - 34 = 53
    54 + 33 = 87 —— 14 - 13 = 1 —— 40 - 16 = 24
    24 - 18 = 6 —— 55 + 51 = 106 —— 84 - 65 = 19
    62 - 56 = 6 —— 84 + 25 = 109 —— 18 + 86 = 104
    46 + 66 = 112 —— 39 + 99 = 138 —— 84 - 72 = 12
    16 - 14 = 2 —— 49 + 11 = 60 —— 73 - 29 = 44
    99 - 81 = 18 —— 42 - 36 = 6 —— 21 - 17 = 4
    32 + 22 = 54 —— 65 - 40 = 25 —— 39 - 30 = 9
    46 + 53 = 99 —— 26 + 85 = 111 —— 87 - 63 = 24
    87 + 26 = 113 —— 14 + 93 = 107 —— 64 - 11 = 53
    75 + 95 = 170 —— 30 - 30 = 0 —— 76 - 48 = 28
    68 + 29 = 97 —— 57 + 89 = 146 —— 72 - 11 = 61
    47 + 38 = 85 —— 99 + 62 = 161 —— 56 + 28 = 84
    68 - 39 = 29 —— 63 - 47 = 16 —— 65 + 76 = 141
    59 - 14 = 45 —— 79 + 42 = 121 —— 28 + 93 = 121
    35 + 44 = 79 —— 65 - 48 = 17 —— 89 + 38 = 127
    64 + 91 = 155 —— 99 - 26 = 73 —— 24 + 27 = 51
    11 - 10 = 1 —— 78 + 32 = 110 —— 90 + 23 = 113
    88 + 98 = 186 —— 82 - 58 = 24 —— 45 + 69 = 114
    59 - 24 = 35 —— 92 + 44 = 136 —— 65 - 18 = 47
    94 - 58 = 36 —— 50 + 75 = 125 —— 14 - 12 = 2
    23 + 57 = 80 —— 84 - 82 = 2 —— 57 - 19 = 38
    56 + 33 = 89 —— 40 - 25 = 15 —— 61 - 45 = 16
    49 - 11 = 38 —— 31 + 38 = 69 —— 23 - 14 = 9
    24 - 20 = 4 —— 72 - 19 = 53 —— 95 - 42 = 53
    49 - 26 = 23 —— 20 - 11 = 9 —— 38 + 80 = 118
    39 + 55 = 94 —— 56 - 37 = 19 —— 27 - 20 = 7

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