<div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">2014年小学六年级数学分数乘法</font></span></div><div style="text-align: center;"><font color="#ff0000"><br></font></div><span style=" font-weight:bold; "><div style="text-align: center;"><font color="#ff0000">单元平行测试题</font></div></span><div><br></div><br><span style=" font-weight:bold; ">一、用心填一填:(21分)</span><span style=" font-weight:bold; "></span><br><br><span>1、</span>1/2<span>×( )= </span>3/5<span>×( )=0.5×( )</span><br><br><span>2、在○里填上>、<或=</span><br><br>5/6<span>×4○ </span>5/6<span> 9×</span>2/3<span>○</span>2/3<span>×9 </span>3/8<span>× </span>1/2<span>○ </span>3/8<br><br><span>3、边长 </span>1/2<span>分米的正方形的周长是( )分米。</span><br><br><span>4、六(1)班有50人,女生占全班人数的 </span>2/5<span>,女生有( )人,男生有( )。</span><br><br><span>5、看一本书,每天看全书的 </span>1/9<span>,3天看了全书的( )。</span><br><br><span>6、一袋大米25kg,已经吃了它的</span>2/5<span>,吃了( )kg,还剩( )kg。</span><br><br><span>7、比30多 </span>1/6<span>的数是( );比36少 </span>3/4<span>的数是( )。</span><br><br><span>8、</span>2/5<span>×</span>3/4<span>表示的意义是( ),4</span><span>×</span>3/5<span>表示的意义是( )</span><br><br><span>9、3吨的</span>2/9<span>是( )吨,4米的</span>3/5<span>是( )米,24的</span>2/3<span>是( )。</span><br><br><span>10、一个正方形的边是</span>9/4<span>米,它的周长是( )米,它的面积是( )平方米。</span><br><br><span style=" font-weight:bold; ">二、对号入座(12分)。</span><span style=" font-weight:bold; "></span><br><br><span>1、“小羊只数是大羊只数的 </span>3/8<span>”,( )是单位“1”。</span><br><br><span>A、小羊 B、大羊 C、无法确定</span><br><br><span>2、( )的倒数一定大于1。</span><br><br><span>A、真分数 B、假分数 C、任何数</span><br><br><span>3、今年的产量比去年多</span>1/10<span>,今年的产量就相当于去年的( )。</span><br><br><span>A、</span>1/10<span> B、</span>9/10<span> C、</span>11/10<span> </span><br><br><span>4、12×(</span>1/4<span>+ </span>1/3<span>)=3+4=7,这是根据( )计算的。</span><br><br><span>A、乘法交换律 B、乘法分配律 C、乘法结合律</span><br><br><span>5、一块长方形菜地,长20米,宽是长的</span>3/4<span>,求面积的算式是( )。</span><br><br><span>A、20×</span>3/4<span> B、20× </span>3/4<span>+20 C、20×(20× </span>3/4<span>)</span><br><br><span>6、比35的 </span>2/7<span>多9的数是( )。</span><br><br><span>A、19 B、14 C、1</span><br><br><span>三、火眼金睛辨对错(10分)。</span><span></span><br><br><span>1、一个数的倒数小于它本身,这个数一定是假分数。 ( ) </span><br><br><span>2、1千克糖,吃了 1/2 ,还剩 1/2 千克。 ( )</span><br><br><span>3、一个不为0的数乘真分数,积一定小于这个数。 ( )</span><br><br><span>4、杨树比柳树多1/5 ,那么柳树就比杨树少1/5 ( )</span><br><br><span>5、a×4/5 =b× 2/3 ,则a < b ( )</span><br><br><span>6、自然数a的倒数是 </span>1/a<span>。 ( ) </span><br><br><span>7、1吨的 </span>4/5<span>和4吨的 </span>1/5<span>一样重。( )</span><div><br><span>8、一根电线长3米,用去 </span>2/5<span>米后,还剩下 </span>3/5<span>米。 ( ) </span><br><br><span>9、60的 </span>2/5<span>相当于80的 </span>3/10<span> 。 ( )</span><br><br><span>10、冰箱的数量相当于电视机的</span>7/8<span>,冰箱的数量比电视机少</span>1/8<span>.( )</span><br><br><span><strong>四、计算(29分)</strong></span><br><br><span>1.直接写出得数:(9分)</span><br><br>2/7<span>×2 = </span>3/5<span>×1 = </span>3/4<span>×</span>1/3<span>=</span><span> 12</span><span>×</span>3/4<span>=</span><span> </span>5/28<span>×7= </span><br><br>4/5<span>×</span>4/7<span>=</span><span> 5</span><span>-</span>3/7<span>=</span><span> </span>7/24<span>×</span>3/14<span>=</span><span> </span>1/6<span>+</span>5/6<span>×</span>1/5<span>=</span><span> </span><br><br><span>2.</span><span> </span><span>用你喜欢的方法算:(20分)</span><br><br><span> </span>1/4<span style=" letter-spacing:; ">+</span>3/4<span style=" letter-spacing:; ">×</span>1/3<span> </span>40/13<span>×39×</span>7/80<span> </span>5/7<span style=" letter-spacing:; ">×</span>1/4<span style=" letter-spacing:; ">+</span>3/4<span style=" letter-spacing:; ">×</span>5/7<span> </span><br><br><span style=" letter-spacing:; ">(</span>1/4<span style=" letter-spacing:; ">+</span>1/5<span style=" letter-spacing:; ">)×4×5</span><span> 24×</span> 51/43<span>+51×</span>19/43<br><br><span style=" font-weight:bold; ">五、看图列式计算(8分)。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0918/2014918154427.png?m=0.8494639853015542" width="550" height="106"><br><br><span style=" font-weight:bold; ">六、解决问题。(20分)</span><span style=" font-weight:bold; "></span><br><br><span>1、甲乙两地相距420千米,一辆汽车行驶了全程的 </span>5/7<span>,行驶了多少千米?</span><br><br><span>2、一个果园占地20公顷,其中的 </span>2/5<span>种苹果树,</span>1/4<span>种梨树,苹果树和梨树各种了多少公顷?</span><br><br><span>3、猎豹的速度是每小时125千米,老虎每小时跑81千米,现在猎豹和老虎各跑了</span>3/4<span>小时,猎豹比老虎少跑多少千米?</span><br><br><span>4、一辆汽车行1千米耗油</span>1/12<span>升,照这样计算,行</span>4/5<span>千米耗油多少升?行50千米呢?</span><br><br><span>5、鹅的孵化期是30天,鹅的孵化期的</span><span>等于鸭的孵化期;鸡的孵化期是鸭的</span><span>。鸡的孵化期是多少天?</span><br><br><span>6、一杯约250ml的鲜牛奶大约含有</span>3/10<span>g的钙质,小华每天喝2杯这样的牛奶,他一个月30天通过喝牛奶可以摄取钙质多少g?</span><br><br></div>
六年级上