<div style="text-align: center;"><strong><font color="#ff0000">2014-2015学年北师大版小学六年级数学上册比的认识测试题</font></strong></div><br><span style=" font-weight:bold; ">一、填空。</span><span style=" font-weight:bold; "></span><br><br><span>1</span><span>．</span><span>( )</span><span>：</span><span>30=30</span><span>÷</span><span>( )=3/5</span><span>=</span><span>24/( )=( )(</span><span>小数</span><span>)</span><br><br><span>2</span><span>．五</span><span>(1)</span><span>班男生</span><span>36</span><span>人，女生</span><span>24</span><span>人，男、女生人数的最简比是</span><span>( )</span><span>，女生人数和全班人数的最简比是</span><span>( )</span><span>。</span><br><br><span>3</span><span>．从学校到图书馆，甲用</span><span>15</span><span>分，乙用</span><span>18</span><span>分，甲、乙所用时间比是</span><span>( )</span><span>，乙与甲每分所走的路程比是</span><span>( )</span><span>。</span><br><br><span>4</span><span>．体育课上老师拿出</span><span>40</span><span>根跳绳，按</span><span>3</span><span>：</span><span>2</span><span>分给男、女生，男生分得这些跳绳的( )/( )</span><span>，女生分得</span><span>( )</span><span>根。</span><br><br><span>5</span><span>．山羊只数比绵羊多</span><span>25%</span><span>，山羊只数和绵羊只数的比是</span><span>( )</span><span>，绵羊比山羊少</span><span>( )%</span><span>。</span><br><br><span>6</span><span>．一个直角三角形，两个锐角度数比是</span><span>7</span><span>：</span><span>11</span><span>，这两个锐角分别是</span><span>( )</span><span>度和</span><span>( )</span><span>度。</span><br><br><span style=" font-weight:bold; ">二、计算。</span><span style=" font-weight:bold; "></span><br><br><span>1</span><span>．化简比。</span><br><br><span>0.875</span><span>：</span><span>1.75 7/20</span><span>：3/4</span><span> 4</span><span>厘米：</span><span>20</span><span>千米</span><br><br><span>2</span><span>．求比值。</span><br><br><span>0.13</span><span>：</span><span>2.6 9/20</span><span>：1/6</span><span> 2</span><span>：</span><span>0.5</span><br><br><span style=" font-weight:bold; ">三、解答</span><span style=" font-weight:bold; "></span><br><br><span>1</span><span>．长方形的周长是</span><span>72</span><span>厘米，长与宽的比是</span><span>4 </span><span>：</span><span>5</span><span>，长方形的面积是多少？</span><br><br><span>2</span><span>.等腰三角形的顶角与底角的比是</span><span>2 </span><span>：</span><span>5</span><span>，它的顶角与底角各是多少度？</span><br><br><span>3</span><span>.红、黄、蓝三种铅笔支数的比是</span><span>2</span><span>：</span><span>3 </span><span>：</span><span>5</span><span>，红铅笔是</span><span>12</span><span>支，黄铅笔、蓝铅笔各有多少支？</span><br><br><span style=" font-weight:bold; ">四、应用题。</span><span style=" font-weight:bold; "></span><br><br><span>01</span><span>、在一块铜和锡的合金中，铜和锡的重量比是</span><span>5</span><span>：</span><span>3.</span><span>已知合金的重量是</span><span>400</span><span>千克，其中铜和锡各重多少千克？</span><br><br><span>02</span><span>、用</span><span>180</span><span>厘米的铁丝做一个长方体的框架。长、宽、高的比是</span><span>3</span><span>：</span><span>2</span><span>：</span><span>4.</span><span>这个长方体的长、宽、高分别是多少？</span><br><br><span>03</span><span>、☆某校语文教师占教师总人数的2/7</span><span>，数学教师占教师总人数的3/10</span><span>，艺术教师占教师总人数的1/5</span><span>。语文、数学和艺术教师的人数比各是多少？如果学校艺术教师有</span><span>28</span><span>人，那么语文教师和数学教师个有多少人？</span><br><br><span>04</span><span>、☆果园里苹果树、梨树和桃树的比是</span><span>3</span><span>：</span><span>2:7.</span><span>其中苹果树有</span><span>60</span><span>棵，梨树和桃树各有多少棵？</span><br><br><span>05</span><span>、☆饲养场白兔和灰兔的比是</span><span>5</span><span>：</span><span>2</span><span>，白兔比灰兔多</span><span>60</span><span>只，饲养场一共养了多少只兔子？</span><br><br><span>06</span><span>、☆☆六年级共有学生</span><span>280</span><span>人，男生是女生的3/5</span><span>，男生和女生各有多少人？</span><br><br><span>07</span><span>、甲、乙、丙三个数的平均数是</span><span>80</span><span>，三个数的比是</span><span>1:2:3</span><span>，这三个数分别是多少？</span><br><br><span>08</span><span>、☆一条路已经修好了</span><span>80</span><span>千米，已经修的与铁路总长的比是</span><span>1:8</span><span>，还有多少千米没有修？</span><br><br><span>09</span><span>、☆☆有大小两桶油，重量比是</span><span>7:3</span><span>，如果从大桶取出</span><span>12</span><span>升油倒入小桶，则两个桶中的油正好相等。两桶中原来各有油多少升？</span><br><br>
六年级上