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  • 两位数减一位数加法速算技巧
  • 发布时间:2021-01-13 00:12 | 作者:admin | 来源:未知 | 浏览:
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  • 97 + 83 = 180 —— 26 - 24 = 2 —— 39 + 99 = 138
    19 + 96 = 115 —— 54 + 70 = 124 —— 62 + 87 = 149
    77 + 20 = 97 —— 52 - 33 = 19 —— 14 + 23 = 37
    15 - 12 = 3 —— 16 + 10 = 26 —— 59 + 18 = 77
    97 + 37 = 134 —— 70 + 13 = 83 —— 67 + 24 = 91
    76 - 21 = 55 —— 21 - 12 = 9 —— 82 + 74 = 156
    54 + 75 = 129 —— 92 + 96 = 188 —— 60 + 97 = 157
    39 - 16 = 23 —— 58 - 31 = 27 —— 12 + 62 = 74
    74 - 13 = 61 —— 45 + 44 = 89 —— 93 + 76 = 169
    93 - 19 = 74 —— 40 - 11 = 29 —— 53 - 43 = 10
    13 + 41 = 54 —— 47 - 37 = 10 —— 50 + 80 = 130
    62 - 37 = 25 —— 43 + 62 = 105 —— 82 - 42 = 40
    17 - 16 = 1 —— 74 - 74 = 0 —— 40 - 17 = 23
    35 + 33 = 68 —— 95 - 39 = 56 —— 20 - 12 = 8
    29 + 68 = 97 —— 35 - 13 = 22 —— 31 + 22 = 53
    33 + 89 = 122 —— 26 + 92 = 118 —— 90 - 47 = 43
    55 + 90 = 145 —— 77 - 32 = 45 —— 59 - 59 = 0
    12 + 57 = 69 —— 56 + 44 = 100 —— 24 + 71 = 95
    15 - 10 = 5 —— 42 + 75 = 117 —— 91 + 79 = 170
    41 + 11 = 52 —— 77 - 36 = 41 —— 54 + 89 = 143
    82 + 40 = 122 —— 60 + 17 = 77 —— 78 + 76 = 154
    38 - 27 = 11 —— 29 + 18 = 47 —— 60 - 40 = 20
    92 - 79 = 13 —— 67 + 29 = 96 —— 64 - 56 = 8
    74 - 15 = 59 —— 50 + 73 = 123 —— 50 + 97 = 147
    44 - 20 = 24 —— 65 - 28 = 37 —— 78 + 52 = 130
    21 - 12 = 9 —— 96 + 34 = 130 —— 12 - 11 = 1
    35 - 10 = 25 —— 15 - 13 = 2 —— 70 - 24 = 46
    44 + 69 = 113 —— 58 - 51 = 7 —— 84 - 13 = 71
    12 - 12 = 0 —— 41 + 80 = 121 —— 99 - 89 = 10
    96 - 88 = 8 —— 76 - 29 = 47 —— 93 + 30 = 123
    20 + 59 = 79 —— 72 - 59 = 13 —— 78 - 31 = 47
    39 + 15 = 54 —— 85 + 61 = 146 —— 59 + 67 = 126
    60 + 29 = 89 —— 95 + 43 = 138 —— 91 + 38 = 129
    92 - 29 = 63 —— 41 + 53 = 94 —— 63 - 23 = 40
    44 + 72 = 116 —— 36 - 35 = 1 —— 48 - 27 = 21
    99 + 14 = 113 —— 37 - 23 = 14 —— 49 + 41 = 90
    41 - 22 = 19 —— 79 - 17 = 62 —— 34 - 24 = 10
    91 - 68 = 23 —— 68 - 48 = 20 —— 57 - 10 = 47
    10 + 54 = 64 —— 97 - 30 = 67 —— 20 - 10 = 10
    23 + 50 = 73 —— 50 + 11 = 61 —— 65 - 49 = 16
    70 + 11 = 81 —— 93 - 19 = 74 —— 40 + 39 = 79
    60 + 91 = 151 —— 83 + 46 = 129 —— 15 + 76 = 91
    69 + 50 = 119 —— 43 - 24 = 19 —— 26 - 16 = 10
    26 + 74 = 100 —— 67 + 33 = 100 —— 98 + 45 = 143
    24 - 24 = 0 —— 75 + 48 = 123 —— 10 - 10 = 0
    21 - 20 = 1 —— 11 + 74 = 85 —— 81 - 81 = 0
    36 - 25 = 11 —— 22 - 16 = 6 —— 91 + 80 = 171
    16 + 52 = 68 —— 53 + 33 = 86 —— 46 - 30 = 16
    67 - 36 = 31 —— 54 - 24 = 30 —— 12 + 31 = 43
    46 - 38 = 8 —— 11 - 11 = 0 —— 85 + 28 = 113
    91 + 98 = 189 —— 29 + 17 = 46 —— 73 - 65 = 8
    67 - 57 = 10 —— 81 - 52 = 29 —— 78 + 14 = 92
    33 - 16 = 17 —— 67 - 57 = 10 —— 74 + 64 = 138
    65 + 36 = 101 —— 70 + 36 = 106 —— 78 - 59 = 19
    45 - 31 = 14 —— 95 - 46 = 49 —— 66 + 92 = 158
    12 - 12 = 0 —— 21 - 10 = 11 —— 75 - 58 = 17
    56 + 76 = 132 —— 13 - 13 = 0 —— 98 - 62 = 36
    90 + 82 = 172 —— 99 + 42 = 141 —— 13 - 11 = 2
    87 + 28 = 115 —— 73 - 34 = 39 —— 33 - 13 = 20
    73 + 54 = 127 —— 28 - 19 = 9 —— 37 - 27 = 10
    35 + 51 = 86 —— 99 - 26 = 73 —— 72 - 53 = 19
    79 + 18 = 97 —— 62 + 83 = 145 —— 31 - 11 = 20
    100 - 54 = 46 —— 52 - 46 = 6 —— 25 - 15 = 10
    27 + 53 = 80 —— 36 + 88 = 124 —— 38 - 38 = 0
    25 - 10 = 15 —— 24 - 12 = 12 —— 63 + 19 = 82
    61 + 98 = 159 —— 15 - 10 = 5 —— 43 + 43 = 86
    75 - 40 = 35 —— 41 + 13 = 54 —— 37 - 25 = 12
    65 + 78 = 143 —— 65 - 50 = 15 —— 90 - 53 = 37
    46 - 35 = 11 —— 39 - 37 = 2 —— 89 + 58 = 147
    40 + 100 = 140 —— 73 - 49 = 24 —— 25 + 61 = 86
    62 - 57 = 5 —— 52 - 43 = 9 —— 97 + 41 = 138
    18 + 61 = 79 —— 35 - 25 = 10 —— 22 + 80 = 102
    44 - 19 = 25 —— 91 + 47 = 138 —— 48 + 68 = 116
    23 + 25 = 48 —— 87 - 82 = 5 —— 77 - 76 = 1
    13 - 11 = 2 —— 85 - 48 = 37 —— 26 + 67 = 93
    38 - 29 = 9 —— 11 + 51 = 62 —— 59 + 89 = 148
    83 + 81 = 164 —— 65 - 40 = 25 —— 92 - 57 = 35
    66 - 29 = 37 —— 92 + 32 = 124 —— 24 - 10 = 14
    34 + 82 = 116 —— 66 + 15 = 81 —— 81 - 10 = 71
    49 + 52 = 101 —— 83 + 73 = 156 —— 25 + 99 = 124
    83 - 33 = 50 —— 40 + 82 = 122 —— 47 - 25 = 22
    29 - 11 = 18 —— 51 + 31 = 82 —— 34 - 34 = 0
    66 + 45 = 111 —— 92 + 89 = 181 —— 67 - 39 = 28
    66 - 31 = 35 —— 68 + 58 = 126 —— 66 - 54 = 12
    62 - 28 = 34 —— 74 - 26 = 48 —— 48 - 27 = 21
    32 - 29 = 3 —— 64 + 54 = 118 —— 65 + 72 = 137
    97 + 38 = 135 —— 14 + 93 = 107 —— 93 - 59 = 34
    22 - 19 = 3 —— 85 + 81 = 166 —— 22 - 21 = 1
    92 + 65 = 157 —— 28 - 26 = 2 —— 57 + 57 = 114
    87 - 42 = 45 —— 35 + 28 = 63 —— 23 - 20 = 3
    12 + 62 = 74 —— 63 - 11 = 52 —— 75 - 15 = 60
    31 - 15 = 16 —— 63 - 17 = 46 —— 11 - 10 = 1
    50 + 55 = 105 —— 29 - 11 = 18 —— 46 - 13 = 33
    43 + 23 = 66 —— 73 + 60 = 133 —— 49 - 31 = 18
    16 + 99 = 115 —— 86 + 85 = 171 —— 15 - 12 = 3
    50 - 29 = 21 —— 67 - 53 = 14 —— 28 - 24 = 4
    99 - 57 = 42 —— 42 + 94 = 136 —— 97 - 71 = 26
    86 - 42 = 44 —— 12 - 10 = 2 —— 86 + 62 = 148
    82 - 54 = 28 —— 63 - 22 = 41 —— 81 - 32 = 49
    66 - 12 = 54 —— 34 + 68 = 102 —— 21 - 17 = 4

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