2013年北师大版小学一年级数学下册知识点归纳

<div><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">2013北师大版一年级下册数学知识点归纳</font></span></div><br><span style=" z-index:1; left:0px; "></span><span style=" font-weight:bold; ">一、</span><span style=" font-weight:bold; ">100以内数的认识</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0625/201362516553.jpg?m=0.4044110437389463"><br><br><span style=" font-weight:bold; ">&lt;1&gt;..找规律填空。</span><span style=" font-weight:bold; "></span><br><br><span>1.&nbsp;&nbsp;&nbsp;(</span><span style=" font-weight:bold; ">&nbsp;</span><span style=" font-weight:bold; ">4</span><span style=" font-weight:bold; ">&nbsp;</span><span>&nbsp;)、(</span><span>&nbsp;</span><span style=" font-weight:bold; ">5</span><span>)、6、7、(&nbsp;&nbsp;</span><span>8</span><span>&nbsp;)、(&nbsp;</span><span>9</span><span>&nbsp;&nbsp;)、10、(&nbsp;</span><span>11</span><span>&nbsp;&nbsp;)。</span><br><br><span>2.&nbsp;&nbsp;&nbsp;&nbsp;20、30、(&nbsp;&nbsp;</span><span>40</span><span>&nbsp;)、(&nbsp;&nbsp;</span><span>50</span><span>&nbsp;)、(&nbsp;&nbsp;</span><span>60&nbsp;</span><span>)、(&nbsp;&nbsp;</span><span>70&nbsp;</span><span>)、(&nbsp;</span><span>80</span><span>&nbsp;&nbsp;)、90、(</span><span style=" font-weight:bold; ">100</span><span>&nbsp;&nbsp;&nbsp;)。</span><br><br><span>3.&nbsp;&nbsp;&nbsp;&nbsp;68、66、(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;64&nbsp;)、(&nbsp;&nbsp;&nbsp;62)、(&nbsp;60)、(58&nbsp;&nbsp;&nbsp;)、(56&nbsp;&nbsp;)、(&nbsp;&nbsp;54&nbsp;)。</span><span style=" font-weight:bold; "></span><br><br><span>4.&nbsp;&nbsp;&nbsp;&nbsp;(</span><span style=" font-weight:bold; ">90</span><span>&nbsp;&nbsp;&nbsp;)、85、80、(</span><span style=" font-weight:bold; ">&nbsp;&nbsp;75&nbsp;)、(&nbsp;&nbsp;70&nbsp;)、(&nbsp;&nbsp;65&nbsp;)、(&nbsp;&nbsp;60&nbsp;&nbsp;)、(&nbsp;55&nbsp;&nbsp;)。</span><span style=" font-weight:bold; "></span><br><br><span>5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;23、(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">21&nbsp;)</span><span>、19、17、(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;15&nbsp;)、(&nbsp;&nbsp;13&nbsp;)、(&nbsp;11&nbsp;&nbsp;)、(&nbsp;&nbsp;9&nbsp;&nbsp;</span><span>)。</span><br><br><span>6.&nbsp;&nbsp;&nbsp;&nbsp;一个一个数,“三十八”后面第4个数是(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;四十二&nbsp;</span><span>)。</span><br><br><span>7.&nbsp;&nbsp;&nbsp;&nbsp;二个二个数,从“二十一”向后数第3个数是(&nbsp;</span><span style=" font-weight:bold; ">二十七&nbsp;</span><span>&nbsp;&nbsp;)。</span><br><br><span>8.&nbsp;&nbsp;&nbsp;&nbsp;五个五个数,从“六十”向前数第2个数是(&nbsp;</span><span style=" font-weight:bold; ">五十&nbsp;&nbsp;&nbsp;</span><span>)。</span><br><br><span>9.&nbsp;&nbsp;&nbsp;&nbsp;十个十个数,从“七十八”向前数第5个数是(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;二十八&nbsp;&nbsp;</span><span>)。</span><br><br><span>10.&nbsp;&nbsp;&nbsp;按照从1-100的顺序数数是,大于87小于93的数有(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">88、89、90、91、92</span><span>)。</span><br><br><span>11.&nbsp;&nbsp;&nbsp;22和24之间的数是(</span><span style=" font-weight:bold; ">23</span><span>&nbsp;&nbsp;&nbsp;);46前一个数是(</span><span style=" font-weight:bold; ">45</span><span>&nbsp;&nbsp;&nbsp;);89后一个数是(&nbsp;&nbsp;&nbsp;</span><span style=" font-weight:bold; ">90</span><span>&nbsp;);</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;59相邻的两个数是(&nbsp;</span><span style=" font-weight:bold; ">58&nbsp;&nbsp;&nbsp;)和(&nbsp;&nbsp;60&nbsp;&nbsp;</span><span>)。&nbsp;</span><br><br><span style=" font-weight:bold; ">(二)、看图写数。</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0625/201362516716.jpg?m=0.6804305515252054"><br><span style="font-weight: bold;">&lt;3&gt;基础练习</span><br><br><span>1.计数器,从右边开始数,第一位是(&nbsp;</span><span style=" font-weight:bold; ">个</span><span>&nbsp;&nbsp;)位,第二位是(</span><span style=" font-weight:bold; ">十</span><span>&nbsp;&nbsp;)位,第三位是(&nbsp;</span><span style=" font-weight:bold; ">百</span><span style=" font-weight:bold; ">&nbsp;</span><span>&nbsp;)位。100是(</span><span style=" font-weight:bold; ">三</span><span>&nbsp;&nbsp;)位数,99是(&nbsp;</span><span style=" font-weight:bold; ">二&nbsp;</span><span>&nbsp;)位数,8是(</span><span style=" font-weight:bold; ">一&nbsp;</span><span>&nbsp;&nbsp;)位数。</span><br><br><span>2.最大的三位数是(</span><span style=" font-weight:bold; ">999</span><span>&nbsp;&nbsp;),最小的三位数是(</span><span style=" font-weight:bold; ">100&nbsp;</span><span>&nbsp;);最大的两位数是(&nbsp;</span><span style=" font-weight:bold; ">99</span><span>&nbsp;),最小的两位数是(&nbsp;</span><span style=" font-weight:bold; ">10</span><span>&nbsp;);最大的一位数是(&nbsp;</span><span style=" font-weight:bold; ">9&nbsp;</span><span>&nbsp;);最小的一位数是(&nbsp;</span><span style=" font-weight:bold; ">1</span><span>&nbsp;&nbsp;)。</span><br><br><span>3.最大的两位数比最大的一位数多(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">90</span><span>&nbsp;)。</span><span style=" font-weight:bold; ">99&nbsp;</span><span style=" font-weight:bold; ">–</span><span style=" font-weight:bold; ">&nbsp;9&nbsp;=&nbsp;90</span><br><br><span>4.10个一是(</span><span style=" font-weight:bold; ">&nbsp;10</span><span>&nbsp;&nbsp;);10个十是(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;100&nbsp;</span><span>&nbsp;);一个百是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">10&nbsp;</span><span>)个十。</span><br><br><span>5.&nbsp;&nbsp;78里面有(</span><span style=" font-weight:bold; ">8</span><span>&nbsp;&nbsp;)个一和(&nbsp;</span><span style=" font-weight:bold; ">7</span><span>&nbsp;)个十;&nbsp;(</span><span style=" font-weight:bold; ">&nbsp;3</span><span>&nbsp;)个十和(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;6</span><span>)个一组成36.</span><br><br><span>6.&nbsp;&nbsp;8个十和6个一是(</span><span style=" font-weight:bold; ">86</span><span>&nbsp;&nbsp;);个位是5,十位是9,这个数是(&nbsp;</span><span style=" font-weight:bold; ">95</span><span>&nbsp;&nbsp;)。</span><br><br><span>7.&nbsp;&nbsp;56中,十位上的数字是(&nbsp;</span><span style=" font-weight:bold; ">5</span><span>&nbsp;),表示(</span><span style=" font-weight:bold; ">&nbsp;5</span><span>&nbsp;)个(</span><span style=" font-weight:bold; ">十</span><span>&nbsp;),个位上的数字是(</span><span style=" font-weight:bold; ">&nbsp;6</span><span>&nbsp;&nbsp;),表示(&nbsp;</span><span style=" font-weight:bold; ">6</span><span style=" font-weight:bold; ">)</span><span>个(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">一</span><span>&nbsp;)。</span><br><br><span>8.“22”中两个“2”意思相同吗?为什么?(&nbsp;</span><span style=" font-weight:bold; ">不相同,十位上的</span><span style=" font-weight:bold; ">“2”</span><span style=" font-weight:bold; ">表示</span><span style=" font-weight:bold; ">2</span><span style=" font-weight:bold; ">个十,个位上的</span><span style=" font-weight:bold; ">“2”</span><span style=" font-weight:bold; ">表示</span><span style=" font-weight:bold; ">2</span><span style=" font-weight:bold; ">个一</span><span style=" font-weight:bold; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br></div>{$setpage}<div><br><br><span style=" font-weight:bold; ">&lt;3&gt;提高练习</span><span style=" font-weight:bold; "></span><br><br><span>1.&nbsp;</span><span>一个两位数,个位上的数和十位上的数一样大,&nbsp;&nbsp;这个两位数可能是(&nbsp;</span><span style=" font-weight:bold; ">11、22、33、44、55、66、77、88、99)。</span><span style=" font-weight:bold; "></span><br><br><span>2.&nbsp;</span><span>一个两位数,个位上的数比十位上的数大3,这个两位数可能是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">14、25、36、47、58、69&nbsp;&nbsp;</span><span>)。</span><br><br><span>3.</span><span>&nbsp;</span><span>一个两位数,个位上的数和十位上的数合起来是9,这个两位数可能是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">18、27、36、45、54、63、72、81、90&nbsp;&nbsp;&nbsp;</span><span>)。</span><br><br><span>4.</span><span>&nbsp;</span><span>比69大1的数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">70&nbsp;&nbsp;</span><span>)&nbsp;&nbsp;</span><span style=" font-weight:bold; ">69+1=70</span><span>;</span><br><br><span>比69&nbsp;少10的数是(</span><span style=" font-weight:bold; ">&nbsp;59&nbsp;</span><span>&nbsp;)</span><span style=" font-weight:bold; ">69-10=59&nbsp;</span><span>;</span><br><br><span>比69多30的数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">99&nbsp;</span><span>)</span><span style=" font-weight:bold; ">69+30=99</span><span>;</span><br><br><span>比100小1的数是(&nbsp;</span><span style=" font-weight:bold; ">99</span><span>&nbsp;)。</span><span style=" font-weight:bold; ">100-1=99</span><span style=" font-weight:bold; "></span><br><br><span>5.&nbsp;&nbsp;&nbsp;40比(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;39</span><span>&nbsp;&nbsp;)大1,</span><span style=" font-weight:bold; ">(39)+1=40</span><span style=" font-weight:bold; "></span><br><br><span>&nbsp;比(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;50</span><span>&nbsp;&nbsp;)小10。</span><span style=" font-weight:bold; ">40+10=(50)</span><span style=" font-weight:bold; "></span><br><br><span>6.&nbsp;&nbsp;64比28多(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">36</span><span>&nbsp;&nbsp;),</span><span style=" font-weight:bold; ">64-28=36</span><span style=" font-weight:bold; "></span><br><br><span>比64多28的数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">92</span><span>&nbsp;&nbsp;);</span><span style=" font-weight:bold; ">64+28=92</span><span style=" font-weight:bold; "></span><br><br><span>26比45少(&nbsp;</span><span style=" font-weight:bold; ">19</span><span>&nbsp;&nbsp;&nbsp;&nbsp;),</span><span style=" font-weight:bold; ">45-26=19</span><span style=" font-weight:bold; "></span><br><br><span>比72少26的数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">&nbsp;46&nbsp;&nbsp;</span><span>);</span><span style=" font-weight:bold; ">72-26=46</span><span style=" font-weight:bold; "></span><br><br><span>7.&nbsp;&nbsp;&nbsp;一个加数是89,另一个加数是最大的一位数,和是(&nbsp;</span><span style=" font-weight:bold; ">98&nbsp;&nbsp;</span><span>&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">89+9=98</span><span style=" font-weight:bold; "></span><br><br><span>8.&nbsp;&nbsp;&nbsp;一个加数是39,另一个加数是48,和是(</span><span style=" font-weight:bold; ">87&nbsp;</span><span>&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">39+48=87</span><span style=" font-weight:bold; "></span><br><br><span>9.&nbsp;&nbsp;&nbsp;一个加数是47,和是最大的两位数,另一个加数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">52&nbsp;</span><span>&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">99-47=52</span><span style=" font-weight:bold; "></span><br><br><span>10.&nbsp;&nbsp;一个加数是87,和是最小的三位数,另一个加数是(&nbsp;</span><span style=" font-weight:bold; ">13&nbsp;</span><span>&nbsp;&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">100-87=13</span><br><br><span>11.&nbsp;&nbsp;被减数是72,减数是35,差是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">37</span><span>&nbsp;&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">72-35=37</span><span style=" font-weight:bold; "></span><br><br><span>12.&nbsp;&nbsp;被减数是80,差是42,减数是(</span><span style=" font-weight:bold; ">&nbsp;&nbsp;38&nbsp;&nbsp;</span><span>&nbsp;)。</span><span style=" font-weight:bold; ">80-42=38</span><span style=" font-weight:bold; "></span><br><br><span>13.&nbsp;&nbsp;减数是32,差是49,被减数是(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">81&nbsp;</span><span>&nbsp;&nbsp;)。</span><span style=" font-weight:bold; ">32+49=81</span><span style=" font-weight:bold; "></span><br><br><span>14.小松鼠吃了27个松果,还剩48个松果,原来有(&nbsp;</span><span style=" font-weight:bold; ">&nbsp;75&nbsp;</span><span>&nbsp;&nbsp;)个。</span><span style=" font-weight:bold; ">27+48=75</span><span style=" font-weight:bold; "></span><br><br><span>15.原来有98个苹果,卖了56个,还剩(&nbsp;&nbsp;</span><span style=" font-weight:bold; ">42</span><span>&nbsp;&nbsp;)个。</span><span style=" font-weight:bold; ">98-56=42</span><span style=" font-weight:bold; "></span><br><br><span>16.树上原来有23只小鸟,现在还剩9只,飞走了(</span><span style=" font-weight:bold; ">&nbsp;14&nbsp;</span><span>&nbsp;&nbsp;&nbsp;)只。</span><span style=" font-weight:bold; ">23-9=14</span><span style=" font-weight:bold; "></span><br><br><span style="font-weight: bold;">&lt;4&gt;灵活运用</span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span>1.用&nbsp;<img src="//www.szxuexiao.com/uploadimages/2013/0625/201362516917.jpg?m=0.8457954078912735">&nbsp;三张卡片中的两张组成两位数,最大的数是(&nbsp;85&nbsp;&nbsp;),最小的数是(&nbsp;&nbsp;25&nbsp;),最大的数和最小的数相差(&nbsp;&nbsp;60&nbsp;&nbsp;&nbsp;&nbsp;)。85-25=60<br><br><strong>2.想一想,填一填。(课本上的例题,请参考课本)</strong><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161020.jpg?m=0.5761451998259872"><br><br><strong>3.(提高练习1—3题参考答案)</strong><br><br><span style=" z-index:1; left:0px; "></span><img src="//www.szxuexiao.com/uploadimages/2013/0625/201362516116.jpg?m=0.39838155545294285"><br><br><strong>5.熟记规律(要灵活运用)</strong><br><br>(1)加数&nbsp;+&nbsp;加数&nbsp;=&nbsp;和&nbsp;&nbsp;;加数&nbsp;=&nbsp;和&nbsp;–&nbsp;加数;<br><br>(2)被减数&nbsp;–&nbsp;减数&nbsp;=&nbsp;差;&nbsp;减数&nbsp;=&nbsp;被减数&nbsp;–&nbsp;差&nbsp;;&nbsp;被减数&nbsp;=&nbsp;差&nbsp;+&nbsp;减数&nbsp;;<br><br>(3)原来&nbsp;–&nbsp;吃了&nbsp;=&nbsp;还剩;&nbsp;吃了&nbsp;=&nbsp;原来&nbsp;–&nbsp;还剩&nbsp;;&nbsp;原来&nbsp;=&nbsp;吃了&nbsp;+&nbsp;还剩&nbsp;;<br><br><strong>二,复习“图形和几何”</strong><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161226.png?m=0.2159787160344422"><br><span style=" font-weight:bold; "></span><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161247.png?m=0.7777145013678819"><br><br><span style=" font-weight:bold; "></span></div>{$setpage}<div><br><br><span style=" font-weight:bold; "></span><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161316.png?m=0.006135307718068361"><br><br><span style=" font-weight:bold; "></span><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161338.png?m=0.7567081463057548"><br><br><span style=" font-weight:bold; "></span><img src="//www.szxuexiao.com/uploadimages/2013/0625/201362516141.png?m=0.3106120117008686"><br></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161436.png?m=0.6638079222757369"><br></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161521.png?m=0.7837257296778262"><br></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161548.png?m=0.964547332143411"><br></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161617.png?m=0.02339410991407931"><br></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2013/0625/2013625161644.png?m=0.313947600312531"><br></div><div><br></div>