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【321287】六年级数学上册典型例题系列之期中复习计算题部分(解析版)

时间:2025-01-08 19:41:11 作者: 字数:6997字
简介:

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 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 六年级数学上册典型例题系列之

期中复习计算题部分(解析版)

编者的话:

《六年级数学上册典型例题系列》是基于教材知识点和常年考点考题总结和编辑而成的,其优点在于选题典型,考点丰富,变式多样。

本专题是期中复习计算题部分,该部分内容主要是以分数乘除法以及比的计算部分为主,题例较为固定,一般以计算题型为主,填空、选择题型为辅,共分为十一个考点,全部是考试试卷出现过的类型考题,难度较小,欢迎使用。


Shape1

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>








【考点一】分、小、除、比、百等五种“数”之间的互化。

【方法点拨】

五种“数”之间的关系及互化:

前项

(比号)

后项

比值

分数

分子

(分数线)

分母

分数值

除法

被除数

÷(除号)

除数

小数

小数、百分数可以和分数互化,从而和除法、比产生关系。

【典型例题】

( ) <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ( ) <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ( ) <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ( )(填小数)

解析:64090.375


【对应练习】

( )= <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> =( )∶815∶( )=( )(填小数)

解析:126200.75


【考点二】求比值与化简比。

【方法点拨】

1.求比值直接用前项除以后项即可。

2.比的化简主要注意两点:

1)比的基本性质:比的前项和后项同时乘或除以相同的数(0除外),比值不变。

2)最简整数比:比的前项和后项为互质数时,这个比就是最简整数比。

【典型例题】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 的比值是( );把1.5:75厘米化成最简单的整数比是( )。

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 2;1

【对应练习】

40千克:0.4吨的比值是( );把51:1.7化成最简整数比是( )。

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ;30:1


【考点三】项的增减变化。

【方法点拨】

该题型利用比的基本性质解决。

【典型例题】

一个比的比值是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ,如果把它的前项加上21,要使比值不变,后项应该 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>    <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

A.加上21 B.乘以21 C.加上24 D.乘以24

解析:C


【对应练习】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 中,比的前项除以8,要使比值不变,比的后项应 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>    <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

  1. 加上8 B.乘8 C.除以8

解析:C


【考点四】化连比。

【方法点拨】

比连比要先找到相同量,然后把相同量的数值利用最小公倍数化为一样,再把相应的项变化。

【典型例题】

甲数和乙数的比是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ,乙数和丙数的比是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 。甲数和丙数的比是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>     <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

A <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> B <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> C <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> D <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析:C


【对应练习】

甲和乙的比是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ,乙和丙的比是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ,那么甲和丙的比是( )。

解析:7:10


【考点五】求比的前项或后项。

【方法点拨】

利用比与除法的关系:

前项

(比号)

后项

比值

除法

被除数

÷(除号)

除数

比值=前项÷后项


【典型例题】

一个比的比值是 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ,如果这个比的前项是12,那么后项是( );如果这个比的后项是12,那么前项是( )。

解析:188


【对应练习】

4∶(  )32 (  )∶60.5

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 3



【考点六】求倒数。

【方法点拨】

乘积为1的两个数互为倒数;

1的倒数是1

0没有倒数。

【典型例题】

( )的倒数是1.2;最小的合数的倒数是( );( )没有倒数。

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 0


【对应练习】

0.125的倒数是( );( )的倒数是它本身;( )的倒数比1大。

解析:81;真分数


【考点七】分数除法简便计算。

【方法点拨】

除法运算性质:

a÷b÷c=a÷(b×c)

a÷(b÷c)=a÷b×c

(a+b)÷c=a÷c+b÷c

(a-b)÷c=a÷c-b÷c

【典型例题】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>÷ <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 35+ <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ÷5  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析:357 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 9



【对应练习】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ÷9- <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ÷9

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

【考点八】解方程。

【方法点拨】

按解方程的方法计算。

【典型例题】

x÷ <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 1 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 12÷ <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x=0.5

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 96



【对应练习】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析:3 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 20



【考点九】单位换算。

【方法点拨】

熟记各种单位间的进率。

【典型例题】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 小时=( )分  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 千米=( )米

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ( )吨( )千克

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 平方分米 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ( )平方厘米

解析:3560350045



【对应练习】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 公顷=( )平方米  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> =( )厘米

40=( )小时  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> =( )千克

解析:400075 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 700


【考点十】分数乘法简便计算。

【方法点拨】

乘法交换律:a×b=b×a

乘法结合律:a×b×c=a×(b×c)

乘法分配律:

(a+b)×c=a×c+b×c

(a-b)×c=a×c-b×c

【典型例题】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析:28 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

×× 86× <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> × <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ÷ <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> × <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 13 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

【对应练习】

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析: <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 687 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

解析:81 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>


【考点十一】判断位置与方向。

【方法点拨】

该类型题求反方向,找到原方向对应的方向,东对西,南对北,东北对西南,西北对东南。

【典型例题】

在地图上,测得杭州在温州北偏西约15°方向上,那么温州在杭州( )偏( )约( )°方向上。

解析:南偏东15°

【对应练习】

1.

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

1)根据上面的路线图填空.

小力要想从家去超市,要先向( )方向走( )米到小军家,再向( )方向走( )米到广场,最后向( )方向走( )米到超市。

解析:南偏西40°180;正西;200;西偏北35°420

2)写出小军从电影院回家的路线。

解析:从电影院出发,先向东偏北15°方向走300米到达书亭;再向正北方向走100米到达超市;再向东偏南35°方向走420米到达广场;最后向正东方向走200米到家。

2 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> .以学校为观测点,画一画。

少年宫在学校东偏北 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 方向的250米处。

医院在学校北偏西 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 方向的400米处。

公园在学校正东方向的300米处。


 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>



解析:

 <a href="/tags/12/" title="算题" class="c1" target="_blank">算题</a> <a href="/tags/14/" title="复习" class="c1" target="_blank">复习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

















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