数学学习乐园讨论与解答（111―120） 标签：速算与巧算
<p><font face=" ,Arial">111</font></p><p><font face=" ,Arial">32</font><font face=" ,Arial">31</font><font face=" ,Arial">n</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">113</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face=" ,Arial">a</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+b</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=c</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+d</font><font face=" ,Arial" size="2">2</font></p><p><font face=" ,Arial">6</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+7</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=2</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+9</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=85</font></p><p><font face=" ,Arial">8</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+11</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=4</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+13</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=185</font></p><p><font face=" ,Arial">15</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+20</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=7</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+24</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=625</font></p><p><font face=" ,Arial"><b> </b></font></p><p><b><font face=" ,Arial">114</font></b><b></b></p><p><b><font face=" ,Arial"></font></b></p><p><font face="宋体" lang="ZH-CN"></font></p><p><font face=" ,Arial">1</font><font face=" ,Arial">2</font><font face=" ,Arial">3</font><font face=" ,Arial">4</font><font face=" ,Arial">5</font><font face=" ,Arial">6</font><font face=" ,Arial">4</font></p><p><font face=" ,Arial">1</font><font face=" ,Arial">2</font><font face=" ,Arial">3</font><font face=" ,Arial">5</font><font face=" ,Arial">6</font><font face=" ,Arial">7</font></p><p><font face=" ,Arial">1</font><font face=" ,Arial">2</font><font face=" ,Arial">3</font><font face=" ,Arial">4</font><font face=" ,Arial">6</font><font face=" ,Arial">7</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">115</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face=" ,Arial">(1)</font><font face=" ,Arial">d</font><font face=" ,Arial">ddddddddd</font></p><p><font face=" ,Arial">20232023=202320231</font><font face="宋体" lang="ZH-CN">÷</font><font face=" ,Arial">9</font></p><p><font face=" ,Arial">(2)</font><font face=" ,Arial">d</font><font face=" ,Arial">dddddd</font></p><p><font face=" ,Arial">20233=202311</font><font face="宋体" lang="ZH-CN">÷</font><font face=" ,Arial">7</font></p><p><font face=" ,Arial">(3)143</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">7=2023</font><font face=" ,Arial">143</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">d</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">7=1 001</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">d=d 00d</font></p><p><font face=" ,Arial">(4)</font></p><p><font face=" ,Arial">2023=2023+111+11+1+0</font></p><p><font face=" ,Arial">(2023</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+1=20230</font></p><p><font face=" ,Arial">(111</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+1=2023</font></p><p><font face=" ,Arial">(11</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+1=100</font></p><p><font face=" ,Arial">(1</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+1=10</font></p><p><font face=" ,Arial">(0</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+1=1</font></p><p><font face=" ,Arial">(2023</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">9)+5=20231</font></p><p><font face=" ,Arial">66</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">67=2</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">3</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">11</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">67</font></p><p><font face=" ,Arial">=22</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">201</font></p><p><font face=" ,Arial">=2023</font></p><p><font face=" ,Arial">666</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">67=2</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">3</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">111</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">67</font></p><p><font face=" ,Arial">=222</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">2023</font></p><p><font face=" ,Arial">=202322</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">116</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face=" ,Arial">4</font><font face=" ,Arial">6 174</font></p><p><font face=" ,Arial">2023</font><font face=" ,Arial">8</font></p><p><font face=" ,Arial">6 174</font></p><p><font face=" ,Arial">5</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">117</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face=" ,Arial">9 7 5 4 3 2</font></p><p><font face=" ,Arial">4</font></p><p><font face=" ,Arial">942</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">753=202326</font></p><p><font face=" ,Arial">4</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">118</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face="宋体" lang="ZH-CN"></font></p><p><font face="宋体" lang="ZH-CN"></font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">119</font><font face=" ,Arial">4</font><font face=" ,Arial">4</font></b></p><p><font face=" ,Arial">95</font></p><p><b><font face=" ,Arial"> </font></b></p><p><b><font face=" ,Arial">120</font></b></p><p><b><font face=" ,Arial"> </font></b></p><p><font face="宋体" lang="ZH-CN"></font></p><p><font face=" ,Arial">(2)</font><font face=" ,Arial">69</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">71</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">73=357 627</font></p><p><font face=" ,Arial">(3)26</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">+27</font><font face=" ,Arial" size="2">2</font><font face=" ,Arial">=2023</font></p><p><font face=" ,Arial">(4)</font></p><p><font face=" ,Arial">5</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">5</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">5=125</font><font face=" ,Arial"> 6</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">6</font><font face="宋体" lang="ZH-CN">×</font><font face=" ,Arial">6=216</font></p><p><font face=" ,Arial">5</font><font face=" ,Arial">6</font><font face=" ,Arial">6</font></p><p><font face=" ,Arial">5.2023355</font><font face=" ,Arial" size="2">3</font><font face=" ,Arial">=200</font></p>
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